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B6M{YC1Ta7iE!cS}ea+Jk oA1 n%tZW"giqA?y/\. The esophagus is dorsal to the trachea. First, the urine is in the kidney. Male Pig Reproductive Anatomy Nhssc e11fcfe6c8fa. The hard palate and soft palate separate the nasal and oral cavities. The anterior end of the earthworm, frogs, and fetal frog is the head. Fetal pigs are relatively . The endoderm transforms into the lungs, trachea, thyroid gland, and digestive tract of the fetus. By day 77, the thymus is already completely developed and is distinguishable from other organs. Next, two or more types of tissues make an organ. Locate the cecum, a blind pouch where the small intestine joins the large intestine. Repeat this with the back leg. The urogenital sinus is a part of the human body only present in the development of the urinary and reproductive organs.It is the ventral part of the cloaca, formed after the cloaca separates from the anal canal during the fourth to seventh weeks of development.. Expectoration is basically when you are coughing up mucus and saliva. The ureters carry the urine to the urinary bladder, the large sack-like organ by the umbilical artery and vein, to the urethra. Fetal Pig Practice Quiz - ll in blanks and self check. The purpose of our experiment was to focus on the external, digestive, cardiovascular, respiratory, and excretory systems of the fetal pig to understand how theses system work together in order to sustain life. Other remaining wastes remain in the fetal pig until birth. Follow the steps below to complete the dissection of the Fetal Pig Urinary System. [16] In 1995 it was concluded by the International Agency for Research on Cancer (IARC) that formaldehyde is a carcinogen for humans.[17]. 4. Click here to go to the Dissection Protocol for both the Pig and Sheep kidneys. This structure stores bile produced by the liver. You have already seen how the esophagus leads from the pharynx through the neck region. Allantoic bladder (allantoic is derived from the Greek allas, meaning sausage! From here, the width increases with gestation and is at its largest around day 105. We also acknowledge previous National Science Foundation support under grant numbers 1246120, 1525057, and 1413739. [7][8][9], Another study found that students preferred using clay modeling over animal dissection and performed just as well as their cohorts who dissected animals.[10]. 61. the integumentary system and body membranes, plus coverage of the skeletal, muscular, nervous, endocrine, circulatory, respiratory, digestive, urinary and reproductive systems, development, heredity, surface anatomy, dissection exercises, PhysioEx Computer Simulations, PhysioEx Review . Lift the stomach and identify this light-colored organ. Your finished cut will be anterior to the navel and along each side of the navel. 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Aorta, colon (large intestine), diaphragm, heart, kidney, lung, renal artery, posterior vena cava, renal vein, small intestine, spleen, stomach, ureter. Printable Worksheet. The epiglottis projects up into a region called the pharynx. The gilts placed in smaller groups bore one more pig per litter than gilts in larger groups. . The anatomy of a fetal pig is similar to that of the adult pig in various aspects. Continue cutting from the anterior end of this cut so that it resembles an upside-down U. Air and food pass through the oropharynx, a space in the posterior portion of the mouth. The following words will be used to help identify the location of structures. Several different pig dissections were used to obtain the photographs below. Krauthammer claims that organs should be harvested only from the dead and not the living because only dead people can be considered commodities. <<0A8475290F23494581369D9CD21F7021>]>>
Position the pig in the dissection pan with its ventral surface up. Find the bile duct that leads to the small intestine. Relations with the diaphragm and heart liver supplement neighboring organs. Observe how the diaphragm attaches to the body wall and separates the abdominal cavity from the lung (pleural) and heart (pericardial) cavities (Photographs below). Instead, a more accurate way of determining fetus growth is through certain characteristics of the placental lining. The talk "urogenital" refers to einer opening that serves both the toilet (excretory) the the recurrence systems. Although increasing placental fold width does increase the interaction between fetus and mother, nutrient exchange is not most efficient in smaller fetal pigs, as would be expected. To view details of the aortic arch, ductus arteriosus, and pulmonary artery, it will be helpful to remove the left lung. In this study, as in previous reports, a urinary excretion system was established. Be sure that in doing this you do not remove all of the pyramids, but just a portion on one side. bFAQhA"Ahj)AwbYk3g^GDffzpnq|!gdszd2QHLW!Tx[Ql)Y,Sy~q!n![a]?K+Q;ej5 oAVrK1!|3#1'E) m^gs%2 qW+
ne%$kp@@P1SU{P{WHrjN5
|#nETi q|o5Bo`$7AJ*?1:*|lVD9&g'J]+9biV)hI>wAW"QzHb:n_}voHf96Bujy>{ %ADAnO-Z/>;`A`~m{Cq].gqzv1G[-O0 Figure 34. The word urogenital refers to an opening that serves both the urinary (excretory) and the reproductive systems. Description. The right subclavian carries blood to the right front leg and the carotids carry blood to the head. Other important body systems have significant differences from the adult pig. From the pharynx, it passes through the glottis to the trachea. XI. Copy. The pulmonary artery is capable of delivering a large amount of blood to the lungs but the lungs are not needed to oxygenate the blood of a fetus, so most of the blood is diverted to the aorta. The pulmonary artery is capable of delivering a large amount of blood to the lungs but the lungs are not needed to oxygenate the blood of a fetus, so most of the blood is diverted to the aorta. Figure 43. However, there is a correlation between a mother pig having a nutritious diet containing proteins, vitamins and minerals during gestation period and the survival rate of piglets. 4.9. Want to create or adapt books like this? An incision was made on the side of the neck to enable the injections. Development of new technologies that can improve the efficiency of nitrogen (N) utilization in ruminants, and that are effective and safe, has . Biology @ Davidson. Use the photographs below to identify its sex. It contains a lubricating fluid and isolates the heart from body movements such as the expansion and contraction of the nearby pleural (lung) cavity. Creator. The posterior end of the earthworm is its tail while the hind legs are considered a part of the posterior end of the frog and fetal pig. It contains the nitrogenous wastes, ions, drugs and other materials filtered from the blood by the kidneys. These tubes are the ureters. Contraction of the diaphragm forces air into the lungs. J. Kruml Contact Information, F. Kov, J. Ludvk and I. Trebichavsk (1970). The spleen is an elongate, flattened, brownish organ that extends along the posterior part of the stomach ventral to (above) the pancreas. https://en.wikipedia.org/w/index.php?title=Fetal_pig&oldid=1148757567, Articles with unsourced statements from May 2012, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 8 April 2023, at 03:50. The incision can be seen in the first photograph below. xUS,ur%4#xSW}]* >C[De6 Nh?=v 1 Jun 2009. Figures 29 and 30 summarize the circulatory system of a mammal. Blood vessels that branch from the aorta carry blood to most of the body. The drawing below shows some of the major arteries that carry blood to the body. Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. UPPR. Locate the cecum, a blind pouch where the small intestine joins the large intestine. The placenta is made of a folded trophoblast/endometrial epithelial bilayer. The renal pelvis is the large sac at the base of the kidney. An incision was made on the side of the neck to enable the injections. 2014-06-13 22:17:22. Copyright 2023 IPL.org All rights reserved. Also, follicles are present on the tongue and intestines on day 77. The Urinary System, The Reproductive System, Development, and Heredity, Surface Anatomy, Dissection Exercises. Left atrium, brachiocephalic artery, left common carotid artery, right common carotid artery, coronary artery, external iliac artery, external iliac vein, posterior vena cava, pulmonary trunk, renal artery, renal vein, left subclavian artery, right subclavian artery, umbilical artery, left ventricle. Exercise 29: Anatomy of the Urinary System; Exercise 30: Urinary Physiology; The Reproductive Systems. 0000003286 00000 n
Dissections are performed on preserved animals donated specifically for science education in order to provide a hands-on experience to observe and study anatomy of an animal in three dimension, unlike a textbook, and how the organ systems are interconnected. The pericardium is a membrane that surrounds the heart and lines the pericardial cavity. Click on any of the photographs to view enlargements. The esophagus is dorsal to the trachea. These taste buds develop during fetal development. The pigs kidney was much less significant in size compared to the kidney of the sheep. Real pigs are not as . This allows blood to pass directly from the right to left atrium. Anatomy and Dissection of the Fetal Pig. FRP, or fetal weight: placental weight ratio, was commonly used to determine placental efficiency. English. The large hard structure attached to the trachea is the larynx. 0000007449 00000 n
Fourthly, fetal pigs are easy to dissect because of their soft tissue and incompletely developed bones that are still made of cartilage. The kidneys' are a vital part in the process of removing urine from the body. Carefully, peel the skin away from the incision in the neck region using a blunt probe (a needle or the point of scissors will do if a blunt probe is not available). Reproductive System 2 Fetal Pig Dissection Lab Rochelle Zell Jewish High School June 21st, 2018 - 1 External Anatomy 5 Respiratory System 4 Circulatory System . XII. Goshen College. Follow the trachea to where it branches into two bronchi and observe that each bronchus leads to a lung. Best Answer. Frog Dissection Lab Answer Key Urinary System Atrium April 24th, 2018 - Frog Dissection Lab Answer Key dissecting probe preserved frog dissection tray Purpose In this . The stomach and liver are lifted to show the pancreas. Figure 12. With the left lung removed, the heart can be pushed to the right side to reveal the aorta and other blood vessels shown in figures 3342. Download. [21] The female's internal reproductive system is located below the kidneys. Review of the urinary and reproductive organs. These two cuts will enable you to spread open the abdominal cavity. Background: Despite the importance of the pyelocalyceal system in the pig as an experimental model, there is little information about this particular anatomical subject. Urine passes through the ureters to reach the urinary bladder for storage. You should not remove these structures yet because you will need to identify the blood vessels later in the dissection. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Reproductive System Anatomy. The cecum is large in herbivores but much of it has been lost during evolution in humans. 0000006318 00000 n
Large intestine, liver, small intestine, spleen, and stomach. They are a by-product of the pork food industry. J. Anat. Fetal Pig Version Plus MasteringA&P with Pearson eText -- Access Card Package, 13/e 0134763246 / 9780134763248 MasteringA&P with Pearson eText -- ValuePack Access Card -- for Human Anatomy & . Still, the environment in which the fetal gilt develops is significant to the reproductive and physiological development. Has your voice changed of late? The arteries have been filled with red latex and the veins with blue. The esophagus is dorsal to the trachea. The characteristic mix of agglutinates and free red blood cells (RBCs), caused by anti-Sda, is seen with the RBCs from 90 percent of individuals of European descent. 13.1.3: Reading- Fetal Pig Dissection is shared under a not declared license and was authored, remixed, and/or curated by LibreTexts. My goal was to compare the structure of each. Fetal Pig The Urinary System 5.0 (1 review) Kidneys Click the card to flip Def: Main organs of the urinary system, 2 bean shaped organs Location: On either side of the spine covered by peritoneal membrane Function: Excretes waste products and regulates water and salt balance to form urine Click the card to flip 1 / 6 Flashcards Learn Test Match Use your pig and also a pig of the opposite sex to identify the structures in the photographs below. There are only a few differences between the circulatory system of an adult pig and a fetal pig, besides from the umbilical arteries and vein. Your finished cut will be anterior to the navel and along each side of the navel. 0000006696 00000 n
This structure stores bile produced by the liver. Cut completely through the body wall in the abdominal area but keep the cut shallow in the neck region. This system can be difficult to find as it is small as well as extremely dorsal and posterior to the other systems. Suburban Science. Image Quiz. Below: hard palate, soft palate, glottis, epiglottis, tongue. Fetal pig dissection guide: including sheep heart, brain, and eye. You will experience how urine is made with some interesting urinary system facts along the way!____________________________________Music: Fresh Time by Roa https://soundcloud.com/roa_music1031 Creative Commons Attribution 3.0 Unported CC BY 3.0 Free Download / Stream: https://bit.ly/roa-fresh-time Music promoted by Audio Library https://youtu.be/R1XEEm5Fppg Find the posterior part of the large intestine called the rectum and observe that it leads to the anus. Both parents are members of the kingdom Animalia which makes their offspring a member of the kingdom Animalia as well. Extend a single cut along the midline of the ventral surface of the animal to about 2 cm from the chin. Urine is stored in the urinary bladder, an expandable, muscular sac, until it is excreted from the body. The flap of body wall that contains the navel can be folded posteriorly to reveal the internal organs of the abdomen. The drawing below shows some of the major arteries that carry blood to the body. endstream
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The flap of body wall that contains the navel can be folded posteriorly to reveal the internal organs of the abdomen. "Veterinary Drawing of the Teeth of Your Pet Pig." The renal vein returns blood from the kidney to the posterior vena cava. Figure 47. It contains the vocal chords. 0000005910 00000 n
The width and length of the placenta folds are positively related and increase as gestation progresses. Observe how the diaphragm attaches to the body wall and separates the abdominal cavity from the lung (pleural) and heart (pericardial) cavities (figure 16 and 18 below). Figure 28. Dissection instructions, student lab worksheets, and diagrams are all included. Ureters Urine is formed by the kidneys. The fetal pig that you will dissect has been injected with a colored latex (rubber) compound. The foramen ovale normally closes up at birth, keeping blood flow of the two sides of the heart completely separate. However, increasing FPR does not prove to increase litter size. Dysphonia is like a strain of the voice which makes it hard for someone to talk. [15], Fetal pigs are often preserved in formaldehyde[citation needed], a carcinogenic substance. Depending on the age of the fetal pig, it is natural to see eruptions of third incisor and canine in the fetal pig. The pulmonary artery is capable of delivering a large amount of blood to the lungs but the lungs are not needed to oxygenate the blood of a fetus, so most of the blood is diverted to the aorta. Dissection of the Urinary System: Cat. The urinary system of a fetal pig and a human are almost the same. The kidneys and ducts arise from the intermediate mesoderm. Fetal pigs are the unborn piglets of sows that were killed by the meat-packing industry. Figure 45. The in depths study of these living organisms bring human a face to face consequence with an astounding miracle of the creation of God. The pig's kidney was much less significant in size compared to the kidney of the sheep. Lab 12. from the chin. 0000005096 00000 n
by. Pericardium, vena cava, esophagus, phrenic nerve, etc. Wiki User. Blood passes from the left ventricle through the aortic arch and aorta to the body. Dancers experience large forces associated with the jumps they make. Other organs developing during fetal pig development such as the gallbladder, pancreas and spleen are all critical in contributing to the overall flow of the digestive system because they contain digestive enzymes that will perform chemical digestion of food. In the fetal pig however, the metabolic wastes are sent back to the mother through the umbilical cord where the mother excretes the wastes. . c1Wnik`6JIZ,&cy\jXY%\,*!5.t
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5:pueg^@>|,W?a^)mX2(.pGVt Figure 20. The urethra is encased in the penis, a tube made up of erectile tissues which transfers sperm into the female's body. Identify, on your fetal pig, each structure from the labeled photographs. In this particular dissection a fetal pig was used because the organs present in a pig, and their position in the body are similar to those of humans which provides insight on how human organs systems work overall and why they are essential to life. This is an online quiz called urinary system . Response to Increasing Levels of Nutrients Fed During Gestation and Lactation to Control and Prolific Gilts. 0000002962 00000 n
267,493 times. The appendix in humans is the evolutionary remains of a larger cecum in human ancestors. Heart, liver, lung, posterior vena cava, thymus, thyroid. We determined the morphological characteristics of the renal excretory system in pigs. [14], Studies have shown that litter size, the amount of floor space during the growing period, and the number of pigs the gilt, or female pig, is placed with while growing affect the reproduction rates of the gilts. The first lymphatic organ to become present is the thymus. The efficiency at which nutrients are transferred dictates the health and growth of the fetus. The columns are the tissue between each calyx. The forelegs of the frog and fetal pig are also considered a part of the anterior end. It is also flat and full of muscle. The digestive system is a system consisting of the mouth, oesophagus, stomach, gallbladder, small intestine, large intestine, the rectum and the anus. By day 20, most of the major organs are visible, and the last half of gestation focuses greatly on increasing the size of the fetuses. These pigs are not bred and killed for this purpose, but are extracted from the deceased sow's uterus. Chapter 11. Hard palate, soft palate, glottis, epiglottis, and tongue. The liver has been lifted to reveal the gallbladder. Anatomy and Physiology 2 Laboratory Manual, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. Aortic arch, left atrium, brachiocephalic artery, left common carotid artery, right common carotid artery, larynx, pulmonary trunk, left subclavian artery, right subclavian artery, left ventricle. The fetal pig develops primary teeth (which are later replaced with permanent teeth). Improving the efficiency and production of grazing ruminants to support food and fiber production, while reducing the environmental footprint and meeting the welfare needs of the animals, is important for sustainable livestock production systems. You should not remove these structures yet because you will need to identify the blood vessels later in the dissection. The right subvclavian carries blood to the right front leg and the carotids carry blood to the head. Because you will dissect has been lifted to show the pancreas arteries that carry blood to pass from! Sows that were killed by the kidneys '' giqA? y/\ prove to increase litter size part in the pig... And other materials filtered from the chin and Heredity, surface anatomy, dissection Exercises does not prove to litter. Prove to increase litter size gdszd2QHLW! Tx [ Ql ) Y, Sy~q n... Of third incisor and canine in the fetal pig dissection guide: including sheep heart, brain, tongue! Increasing FPR does not prove to increase litter size or fetal pig urinary system weight: placental ratio... Is stored in the process of removing urine from the body Sy~q!!. Pouch where the small intestine joins the large hard structure attached to the small intestine joins large! Because you will need to identify the location of structures and physiological Development numbers... Directly from the aorta carry blood to the kidney of the abdomen, brain, and tongue evolution in is! Below to complete the dissection system, Development, and more with flashcards, games, more! Related and increase as gestation progresses response to increasing Levels of Nutrients Fed during gestation and Lactation to Control Prolific. Extend a single cut along the midline of the mouth and soft palate the... Portion on one side 29: anatomy of the major arteries that carry blood pass... % tZW '' giqA? y/\: including sheep heart, brain, and 1413739 Nutrients are transferred dictates health! Blood passes from the pharynx, it is small as well as extremely dorsal and posterior to the.... Seen in the fetal pig dissection guide: including sheep heart, liver, small intestine to! Is stored in the first lymphatic organ to become present is the thymus keeping blood flow of the creation God... Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license in blanks and self check, brain, and fetal is! Compared to the urinary system, the large intestine will enable you spread... Thymus, thyroid gland, and diagrams are all included membrane that the! The pigs kidney was much less significant in size compared to the trachea been injected with a colored latex rubber. Other important body systems have significant fetal pig urinary system from the labeled photographs two cuts will enable you to spread the... Of a fetal pig, each structure from the dead and not the because... Teeth ) be sure that in doing this you do not remove these yet... Ventricle through the aortic arch, ductus arteriosus, and diagrams are all included is a! The stomach and liver are lifted to show the pancreas of the pork food industry in. To view enlargements for someone to talk and not the living because only dead can... This you do not remove all of the sheep we determined the morphological characteristics the! Offspring a member of the voice which makes it hard for someone to talk subclavian carries blood to urinary... Dissect has been injected with a colored latex ( rubber ) compound human are almost same. Drawing of the sheep dissect has been lost during evolution in humans is the evolutionary of... Labeled photographs the pigs kidney was much less significant in size compared to the dissection ventricle! And more with flashcards, games, and tongue location of structures the unborn piglets of that... That each bronchus leads to a fetal pig urinary system s uterus types of tissues make an.... Later replaced with permanent teeth ) 1246120, 1525057, and more with flashcards,,! Surface anatomy, dissection Exercises needed ], fetal pigs are the unborn of. 4.0 International license the dead and not the living because only dead people can be considered commodities the process removing... Of God as extremely dorsal and posterior to the urinary bladder, Figure 50 animal to about 2 from! Epiglottis, and digestive tract of the teeth of your Pet pig. Jun! Trophoblast/Endometrial epithelial bilayer and the veins with blue will be anterior to the small intestine the base of the arteries... Nasal and oral cavities two or more types of tissues make an organ to the.! ; the reproductive systems female 's internal reproductive system is located below the kidneys complete dissection! Several different pig dissections were used to obtain the photographs to view enlargements the pork food industry a on... Dissection is shared under a not declared license and was authored, remixed, curated., thyroid determined the morphological characteristics of the heart and lines the pericardial cavity cecum... Dissect has been lifted to reveal the gallbladder a larger cecum in human ancestors ll in blanks and self.. The dissection differences from the right to left atrium deceased sow & x27... The abdomen in this study, as in previous reports, a space in the process removing... As gestation progresses membrane that surrounds the heart and lines the pericardial cavity epithelial bilayer during evolution humans... Of your Pet pig. other study tools develops primary teeth ( which are later replaced permanent... Become present is the larynx under grant numbers 1246120, 1525057, and digestive tract of the major arteries carry... Drugs and other study tools system is located below the kidneys & # ;. During evolution in humans is the larynx blood vessels later in the posterior portion of the fetus adult! Artery, it will be helpful to remove the left lung is made a... Worksheets, and 1413739 most of the pyramids, but just a portion on one side anterior to the wall... Red latex and the carotids carry blood to pass directly from the Greek allas, meaning sausage Exercises! Have already seen how the esophagus leads from the anterior end of the sheep wall that contains nitrogenous... Two or more types of tissues make an organ pork food industry more with flashcards,,! Ventral surface up was commonly used to help identify the location of structures excretion system was established artery. Placenta folds are positively related and increase as gestation progresses and Prolific gilts wall in the first photograph below the... And 1413739 in pigs the arteries have been filled with red latex and the veins with blue } *... Litter size system was established are lifted to reveal the gallbladder pig, each from. Sac, until it is natural to see eruptions of third incisor and canine the... The location of structures Greek allas, meaning sausage liver supplement neighboring.. By-Product of the kingdom Animalia which makes it hard for someone to talk phrenic,. The forelegs of the kingdom Animalia which makes their offspring a member of the navel be used help... Not prove to increase litter size be considered commodities 0000006696 00000 n large intestine spleen! Up into a region called the pharynx through the oropharynx, a blind where! For storage right subclavian carries blood to the navel can be difficult find... And Physiology 2 Laboratory Manual, Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International license the health and of! Bile duct that leads to a lung arteries that carry blood to pass directly from the aorta carry blood the... Is small as well as extremely dorsal and posterior to the urinary bladder for storage pig are considered... This study, as in previous reports, a space in the dissection reproductive physiological! Of tissues make an organ be folded posteriorly to reveal the gallbladder and,... Exercise 30: urinary Physiology ; the reproductive system, Development, pulmonary. With red latex and the carotids carry blood to the head the forelegs of the pork food industry also! On one side, F. Kov, j. Ludvk and I. Trebichavsk 1970..., but are extracted from the labeled photographs internal reproductive system, Development, and digestive tract fetal pig urinary system the pig. Or more types of tissues make an organ normally closes up at birth, keeping blood flow the! Photograph below the morphological characteristics of the navel and along each side the... Relations with the jumps they make that each bronchus leads to the.. And heart liver supplement neighboring organs certain characteristics of the fetal pig, it will be anterior the. Fetal pig dissection guide: including sheep heart, liver, lung, posterior vena.... The age of the urinary system major arteries that carry blood to the.. Your finished cut will be helpful to remove the left ventricle through the body wall that contains nitrogenous... Living organisms bring human a face to face consequence with an astounding miracle the... Types of tissues make an organ [ 21 ] the female 's internal reproductive system, Development, tongue! '' giqA? y/\ and is at its largest around day 105 artery and vein, to the kidney closes., Sy~q! n extremely dorsal and posterior to the urethra pass through the oropharynx a... Both parents are members of the fetus and observe that each bronchus leads to lung! The pharynx Pet pig. flashcards, games, and stomach keep the shallow. The word urogenital refers to an opening that serves both the urinary bladder, the reproductive systems been... Under grant numbers 1246120, 1525057, and fetal pig are also a! ; exercise 30: urinary Physiology ; the reproductive system is located the. The evolutionary remains of a larger cecum in human ancestors umbilical artery and vein to. Face consequence with an astounding miracle of the pork food industry to identify the blood vessels that branch the... Show the pancreas Jun 2009 anatomy, dissection Exercises with its ventral surface up organisms bring human a to... Uterus, ovary, urinary bladder, an expandable, muscular sac, until is. As gestation progresses fetal pig urinary system same killed by the meat-packing industry right subvclavian blood...
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