Go to: http://www.pc.maricopa.edu/Biology/ppepe/BIO145/lab04.html
Complete each of the SIX activities and answer the questions below.
Activity 1: External Anatomy of the Shark
1. What is function of the lateral line?
2. Which of the two dorsal fins is larger?____________________________________________
3. What two lobe make up the caudal fin?______________________________ and ______________________________
4. What is the function of the rostrum?
5. What is the function of the cornea?
6. What is the function of the spiracular valve?
7. How many gill slits do sharks have?__________
8. What is the function of the olfactory sac?
9. The patches of pores on the head in the areas of the eyes, snout, and nostrils are the openings of the___________________________________________
10. Describe claspers.
11. Describe the cloacal opening.
12. What is the function of myomeres?
Activity 2: Digestive Anatomy of the Shark
1. A smooth, shiny membrane called _______________________________ can be seen lining the inside of the body wall. The visceral organs are suspended dorsally by a double membrane of peritoneum know as
______________________________________

2. What is the largest organ in the shark?
3. What color is the gall bladder?__________________________
4. What is the function of the rugae?
5. Describe the duodenum.
6. Describe the appearance of the spleen.
7. What is the function of the spiral valve?
8. What is the function of the rectal gland?
9. What is the function of the cloaca?
Activity 3: Respiratory Anatomy of the Shark
1. What is the respiratory organs of the shark?______________________________
2. What are the gills composed of?
3. Describe how blood is part of respiration in sharks.
Activity 4: Circulatory Anatomy of the Shark
1. Describe the pericardial cavity.
2. Describe the flow of blood through the shark. Use as much detail as possible.

Activity 5: Urogenital Anatomy of the Shark
1. What organs had to be removed in order to reveal the urogenital structures?
2. What are the functions of the urogenital system?
3. Describe the appearance of the kidneys.
4. The sperm pass from the testes to the kidneys within narrow tubules called _________________________________.
5. What is the difference between the ductus deferens in males and females?
6. What is the function of claspers?
7. Describe the appearance of ovaries.
8. Describe fertilization and development of a shark.
Activity 6: Nervous Anatomy of the Shark
1. What does the shark nervous system consist of?
2. What are the four components of the forebrain? Describe each.

3. Describe the midbrain.
4. What are the two components of the hindbrain? Describe each.
5. What are the four cranial nerves? Describe each