ANSC 4402 EXAM QUESTIONS AND ANSWERS A+ GRADED

ANSC 4402 EXAM QUESTIONS AND ANSWERS A+
GRADED

the parts of a stallion
•Scrotum
•Testis
•Epididymis
•Spermatic Cord
•Accessory Sex Glands
•Penis
•Prepuce
the scrotum
•Sac of skin that houses the testes
-Testes lie horizontal in scrotum
•Skin is thin, not much hair, darkly pigmented
•"It glistens from sebaceous secretion"
•Tunica dartos muscle:
-Draws testes closer to
body when cold
the testes
•Testicle or testis (plural = testes)
•Produces testosterone and spermatogonia
-Spermatogonia eventually differentiate into sperm
The testes parts
-Tunica albuginea: white fibrous capsule on outside
-Seminiferous tubules: sperm production
-Rete tubule: ducts that collect sperm from seminiferous tubules
The Testes
•Cells surrounding seminiferous tubules:
-Sertoli cells: spermatogenesis
-Leydig cells: produce testosterone
The Epididymis
•Where sperm maturation/storage occurs
•Three parts:
•Head (caput) - maturation
•Body (corpus) - maturation
•Tail (cauda) - storage
The Spermatic Cord
•Consists of:
-Ductus deferens (vas deferens): carries sperm
-Pampiniform plexus: cools blood to testes
•Veins
•Testicular artery
-Nerves