INTRODUCTION to FETAL PIG DISSECTION (Virtual) Name:______
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INTRODUCTION TO FETAL PIG DISSECTION (Virtual) Name:______
Go to: http://www.whitman.edu/biology/vpd/main.html
Under Study Guides: Click on Anatomical References.
1. Label the body regions on the pig below.
2. (A) Name the plane that separates the pig into anterior and posterior regions: ______
(B) Is this the same plane that divides the human body into anterior and posterior regions? _____ If not, then which one? ______
3. (A) Name the plane that separates the pig into left and right regions: ______
(B) Is this the same plane that divides the human body into left & right regions? _____ If not, then which one? ______
4. (A) Into what sections does a FRONTAL plane divide the pig into? ______
(B) Is this the same for the human body? _____ If not, then what is difference? ______
Click on Sexing Your Pig
5. Describe how to distinguish the MALE pig from the FEMALE pig.
MALE:
FEMALE:
Click on Digestive System Start with HEAD region.
6. What are NARES?
7. What is the function of the sensory papillae?
8. What is the gland exposed when an incision is made on the side of the head? 9. What are four features to note in the oral cavity.
10. Name and distinguish between the two PALATES in the pig’s mouth.
11. Counting the tusks and the unerupted teeth, how many are seen in the fetal pig’s mouth?
12. What is the PHARYNX and where is it located?
13. What is the flap called that is visible in the pharynx? What is its function?
Click on Start Over and click on the abdominal region of the pig.
14. What 3 muscles are visible when the first incisions are made?
15. What is the first organ visible?
16. Once you have cut through the peritoneal membrane, what organs can you easily see?
17. Where is the stomach?
18. About how long can the small intestine of the fetal pig be?
19. What happens in the large intestine?
20. What is the function of the gall bladder?
21. What is the muscular membrane that separates the peritoneal cavity from the abdominal cavity?
22. The pyloric sphincter in the stomach opens and closes to allow food passage into the
23. What is rugae?
24. What is the function of the spleen?
25. What are 3 other features visible in the abdomen? 26. What is the mesentery?
Click on Excretory System.
27. Name 4 organs of the excretory system that are visible.
28. Name 3 regions of the kidney (you will need to dissect the kidney)
29. Distinguish between renal arteries and renal veins.
30. Through what organ does urine pass to travel from the kidneys to the bladder.
31. What organ carries urine out of the body from the bladder?
Click on Circulatory System.
32. Name four substances transported through the circulatory system.
33. What is the function of the thymus gland and what happens to it as the pig matures?
34. What is the “line” separating the left side of the heart from the right side? What is its function?
35. Label the four chambers of the heart on the diagram below.
36. Why is the left ventricle thicker than the right ventricle?
37. Trace the flow of blood through the heart using the diagram in #35.
38. What is the function of the Chordae Tendinae
Click on Reproductive System.
39. Name the 3 organs visible in the FEMALE reproductive system…Give their function. 40. What is the male counterpart to the female ovaries?
41. What are the tubes within this organ that makes the sperm?
42. What is the function of the epididymis?
Click on Respiratory System.
43. What feature in the trachea ensure that it will remain open?
44. What is the name of the tube that branch off the trachea and enter the lungs?
45. The tube named in #44 branches off into ______, which branches into the ______(air sacs).
Click on Nervous System.
46. What is the 3 layer membrane that covers and protects the brain?
47. Name the 4 lobes of the brain and give their function. (notice that correspond to the names of the cranial bones which would lie above!)
48. What are the olfactory lobes? Is this sense good in pigs? How do you know?
49. What feature connects the two hemispheres of the brain?
50. What differences do you note in the number of vertebrae of pigs and humans?
If there is enough time, try the quizzes!