Lab Exam 3 Shark Urogenital

Question 1

Epididymis

Answer 1

Most anterior tubules that help transport sperm in males

Question 2

Leydig’s gland

Answer 2

Tubules that lie on the middle third of the kidney; form secretions to help transport sperm in males

Question 3

mesorchium

Answer 3

mesentery that suspends the testes/ovaries

Question 4

seminal vesicles

Answer 4

transports sperm to sperm sacs in males

Question 5

sperm sacs

Answer 5

unite to form urogenital sinus, where sperm is excreted through cloaca in males

Question 6

urogenital/urinary papilla

Answer 6

cone-like structure lying in the cloaca where urinary (and seminal in males) ducts open

Question 7

clasper

Answer 7

intromittent organ in males

Question 8

siphon

Answer 8

sac used to push seawater through the clasper groove to siphon sperm into female cloaca in males

Question 9

oviduct

Answer 9

tubules that transfer shed eggs to the uterus in females

Question 10

ostium tubae

Answer 10

opening to both oviducts where eggs shed into the pleuroperitoneal cavity enter in females

Question 11

nidamental gland

Answer 11

anterior enlargement of the oviducts that secretes a membrane over groups of eggs as they travel to the uterus; also where eggs are fertilized in females

Question 12

uterus

Answer 12

posterior enlargement of oviducts where fertilized eggs develop in females