Name: _____ fetal pig dissection - internal anatomy page 1 in this lab exercise you will open the thoracic cavities and abdominal‐pelvic of a fetal pig and. 2 background information: the fetal pig (sus scrofa) belongs to the class mammalia, the same class to which man belongs the gestation period of the pig is about 115 days and the fetal pigs are approximately 30 cm. Knowledge of cardiac anatomy of the pig (sus scrofa) is limited despite the general acceptance in the literature that it is similar to that of man a qualitative analysis of porcine and human cardiac anatomy was achieved by gross examination and dissection of hearts with macrophotography.
Fetal pig dissection external anatomy 1 determine the sex of your pig by looking for the urogenital openingon females, this opening is located near the anus on males, the opening is located near the umbilical cord. Similarity to human structure pigs are mammals consequently, all of the major structures found in humans are present in the fetal pig with proper directions, they can all be readily found, especially with large, full term fetal pig specimens. A fetal pig is a great choice for dissection because the size of the organs make them easy to find and identify it is also a very exciting dissection because a lot of the internal anatomy is similar to humans. Helpful, trusted answers from doctors: dr hassell on fetal pig heart diagram: fetal gender can be gleaned by expert sonogram by 10-14 weeks and clearly visualized thereafter, but even earlier secure diagnosis can is now possible by newer non-invasive prenatal genetic testing options (cell-free fetal dna in maternal circulation eg maternit21.
The urinary bladder is where the kidneys store urine until it is excreted from the body this is easily found when looking near the umbillical cord area, it is attached to the top of the abdominal wall (which you should have cut open) it is a large sac-like organ. The mesentery in a fetal pig is a transparent, thin sheet of tissue that is connected to the peritoneum it supports the internal organs located near the mesentery are veins and arteries that transport blood to and from the small intestine when seen in a dissected image, the mesentery is dark. I assume it would be the same as in the fetal human: to transport venous blood from the placenta to the fetal heart, which got fueled up with oxygen, glucose, amino acids etc in the placenta. Heart and its great vessels the mammalian heart consists of four chambers, a right and a left ventricle and a right and a left atrium each atrium bears an ear-shaped appendage called the auricle. Fetal pig dissection in this lab exercise you will open the abdominal-pelvic and thoracic cavities of a fetal pig and identify its major organs.
Please follow the directions below on how to dissect a fetal pig remember to answer the numbered questions completely in you lab notebook also, make sure you know the location of all bolded terms you will be evaluated on them later. An overview of the pig's digestive system - mouth, stomach, small and large intestines by joel derouchey and colleagues at kansas state university's applied swine nutrition team, presented at the swine profitability conference 2009 the digestive system of a pig is well suited for complete. Pigs, one of the most similar animals to humans, have been used to inform and teach students about the circulatory, respiratory, and digestive system through a procedure called a dissection for many years pigs are similar to humans through the fact that they have skin, not fur or feathers, they are. The american heart association explains why fetal circulation, circulation in the fetus, is more complicated than after birth.
Blood circulation in the fetus and newborn how does the fetal circulatory system work during pregnancy, the unborn baby (fetus) depends on its mother for nourishment and oxygen. Dissection exercise: fetal pig iii, page 121 fetal pig iii anatomy of the urinary and reproductive systems introduction: this exercise is designed to provide you with an opportunity to observe the organs and organ systems of the. What is a fetal pig fetal pigs are collected from the packing house as a by-product of the meat industry these pigs are removed from the uterus of pregnant sows, taken to our facility where they are preserved. Anatomy of a fetal pig (sus scrofa) as the pig is a mammal, many aspects of its structural and functional as the pig is a mammal, many aspects of its structural and functional organization are identical with those of other mammals, including humans.
Fetal pig dissection fetal pig dissection background: mammals are vertebrates having hair on their body and mammary glands to nourish their young the majority are placental mammals in which the developing young, or fetus, grows inside the female's uterus while attached to a membrane called the placenta. Fetal pig dissection and lab practical fetal pig lab practicalppt they aren't ready yet day #4 what is the pericardium fluid filled sac what difference between. Introduction in today's lab we will examine the structure and function of a representative vertebrate, the fetal pig we will be working in groups of two students and concentrate primarily on the circulatory system, the respiratory, digestive, and urogenital systems.
The fetal pig is an organism whose anatomy is very similar to human beings and avatar's the fetal pig is comprised of the same 11 organ systems as humans and avatar's a simple sentence can be used to help you remember the 11 organ systems. 1 the fetal pig is a mammal, like humans nearly all major structures are the same or similar in anatomy while there are some interesting differences between pigs and humans (see some comments under the 'hints and tips' page), the most important things are very similar. The purpose of the peritoneum in a pig fetus is to line the abdominal wall cavity and to help protect the inside of the abdominal cavity a peritoneum is a thin layer of membrane that is located under the muscle layers of the abdomen the peritoneum is also important in a fetal pig because it is.