EXERCISE 20: UROGENITAL SYSTEM

Question 1

disposes liquid wastes, and the genital or reproductive system produces the sex cells and hormones.

Answer 1

Excretory System

Question 2

pair of dark red, elongated structures on the dorsal body wall each containing about 2,000 microscopic glomeruli and tubules that remove excess water and wastes from the
bloodstream.

Answer 2

Kidneys

Question 3

two whitish ducts along posterior lateral part of each kidney to dorsal wall of cloaca; conducts the liquid urine.

Answer 3

ureters or mesonephric ducts

Question 4

one, attached midventrally to cloaca; stores urine which is voided at intervals through the anus.

Answer 4

Urinary Bladder

Question 5

much dilated portion of the large intestine which conducts waste products and sex cells to the anus.

Answer 5

Cloaca

Question 6

two; bean-shaped, flesh-colored or yellowish; each attached near kidney by a short mesentery called mesorchium.

Answer 6

Testes

Question 7

several tiny tubules from each testis passing through the mesorchium to kidney and then into the ureter

Answer 7

vasa efferentia

Question 8

whitish ducts along posterior lateral wall of each kidney to dorsal wall of cloaca.

Answer 8

ureter

Question 10

undulating whitish tubes with fleshy walls suspended by a mesentery, the
mesotubarian.

Answer 10

oviducts

Question 10

pair of lobulated sacs containing egg; each suspended by short mesentery called the
mesorchium.

Answer 10

ovaries