Urogenital System Shark

Question 1

What kind of kidney does the shark have?

Answer 1

Paired opisthonephric kidney

Question 2

In the female shark how is urine drained from the kidney?

Answer 2

The archinephric duct drains urine to the cloaca

Question 3

Vaguely describe the path of an egg starting at the ovary and ending at the uterus.

Answer 3

Eggs released from ovary -> coelem -> ostium tubae -> falciform ligament -> paired oviducts (FERTILIZATION) -> nidamental gland -> paired uterus (DEVELOPMENT)

Question 4

In the male shark, what duct is responsible for transporting sperm?

Answer 4

archinephric duct of the kidney

Question 5

In the male shark, what duct is responsible for draining urine to the cloaca?

Answer 5

accessory urinary duct

Question 6

Name the basic structures in the opisthonephric kidney.

Answer 6

mesonephros, metanephros, accessory duct, archinephric duct

Question 7

Vaguely explain the path of sperm starting in the testes and ending sperm sac.

Answer 7

released from testes-> ductuli efferentes -> epididymis - > archinephric duct ->Leydig’s gland (part of the duct) -> seminal vesicle -> sperm sac

Question 8

How are sperm inseretd into the cloaca of a female?

Answer 8

the clasper is inserted and the sperm are released from the urogenital papilla, travels along a groove, and the siphon contributes to seminal fluid