Cat Dissection Lab Report: Respiration: 1. Are the cartilaginous rings in the cat trachea complete or incomplete? 2. Compare the number of right and left lung lobes in cats and humans. 3. Using what you know about cat muscles, do you expect the same muscular involvement as in humans? Why or why not? 4. Describe the position of the heart relative to the lungs. How does this relate to blood flow through the pulmonary circuit? Digestion: 1. What types of structures do you see in the mesentary? Other than providing support for the intestine, what other functions does the mesentery have? 2. Are there any obvious differences in the external anatomy of the small intestine from one end to the other? Internally, is there a difference in the villi between the duodenum and ileum? What functional reason exists for this? 3. Research and briefly explain the hepatic portal system. How does this relate to liver function? 4. What is the function of the rugae found in the stomach? 5. Explain the differences in dental formulas between cats and humans. Explain the differences in tongue papillae in cats and humans. Urinary: 1. How does the position of the kidneys in the cat relate to their position in humans? 2. How does the site of urethral emptying in the female cat differ from its termination point in the human female? 3. What gland encircles the neck of the bladder in the male? What is its function? 4. Describe the path urine would follow from its formation to its elimination from the body in the cat and in the human. Reproduction: 1. Explain the difference between the cat uterus and the human uterus both structurally and physiologically. 2. Approximately how long is the vagina of the cat? What is the urogenital sinus? 3. Compare the prostate glands, bulbourethral glands and seminal vesicles in cats and humans. What similarities and differences are there both anatomically and physiologically? 4. Briefly describe how the embryonic origins of both the male and female reproductive systems relate to each other.