Rat Dissection Quiz

1. While moving the intestines aside, a student sees two bean-shaped organs attached high against the dorsal body wall rather than hanging freely in the abdominal cavity. What are they?

2. Which paired reproductive structures in a female rat extend from the region of the ovaries toward a short uterine body?

3. In a young rat, pale lobulated tissue may partly cover the front of the heart. Which organ is most likely being observed?

4. Blood returning from the body through the venae cavae enters which chamber of the heart first?

5. During examination of the small intestine, a thin membrane containing blood vessels is accidentally torn away from the intestinal coils. What membrane was damaged?

6. A dissected male rat has paired, lobulated glands positioned near the posterior surface of the urinary bladder. Which structures are these?

7. A student finds a large, blind-ended pouch near the junction of the small and large intestines. Which structure has been found?

8. Which large, multilobed organ lies immediately beneath the diaphragm and partly covers the stomach?

9. A student searches beneath the liver for a gallbladder but cannot locate one. Which explanation is anatomically accurate?

10. A diffuse, pale, glandular tissue lies within the mesentery near the stomach and the first part of the small intestine. Which organ is this?

11. When making an initial incision through the abdominal body wall, which technique best reduces the chance of cutting underlying organs?

12. Two tubes run through the neck. One is held open by visible cartilage rings and lies ventral to the other. Which tube is it?

13. A thin, dark-red, elongated organ is attached along the outer curvature of the stomach. What is it?

14. After opening the abdominal cavity, you see a thin muscular sheet forming the boundary with the thoracic cavity. What is it?

15. Which membrane forms the sac directly surrounding the heart?

16. Two slender tubes can be traced from the kidneys toward the urinary bladder. What are they?