Male Avian Reproductive System

Lecture 27

#1?

Testicle

#2?

Kidney

#3?

Deferent duct

#4?

Cloaca

What is the term for the connection point between the testicles and deferent ducts?

epididymis

What is shown by the purple arrows?

Epididymis

What is another term for the tightly coiled tubes connected to the testes?

epididymal ducts

#7?

Deferent duct

#8?

Ureter

#9?

Urodeum

What is the function of the deferent ducts?

transport sperm to the cloaca from epididymis

What is analogous to the mammalian penis?

Phallus

In poultry, the phallus is relatively small, and _______ enter the female’s cloaca.

does not

In ganders, drakes, ratites (emus, ostriches), the phallus _____ enter (intromission) the female’s cloaca.

does

Psittacines, passerines, pigeons, and birds of play have ___________.

no phallus

#13?

Median phallic tubercle

#14?

Lateral phallic body

Green segment?

Phallus

#1?

Colon

#2?

Coprodeum

#3?

Urodeum

#6?

proctodeum

What is examined in order to determine the sex of day-old chicks?

the vent

What is unique to the male of determine the sex?

rounded median tubercle

What is unique to the female of determine the sex?

a cone-shaped protuberance

#5?

Deferent duct entrance