EXERCISE 3. 1 MALE REPRODUCTIVE SYSTEM Flashcards
male primary sex organ; site of sperm maturation and secretion of male sex hormone
testis
male sex hormone
androgen
testes in birds are located within the ________
body cavity
testes of mammals lie ______ of abdominal cavity in pouch of skin called ________
outside; scrotum
external covering of testes; protects it from mechanical injuries and regulates temperature (2-5 cooler than bod temp.); not present in poultry species
scrotum
long convoluted tube; serves as a place for maturation of spermatozoa before ejaculation
epididymis
muscular tube wherein sperm travels/propels from epididymis to ejaculatory duct in urethra
ductus deferens
canal starting from junction of ampulla and ends at opening of penis; common passage of semen and urine
urethra
enlarged portion of ductus deferens; temporary storage of sperm until ejaculation; absent in pigs
ampulla
paired glands on either side of ampulla; produce high fructose secretion (energy and vehicle for sperm transport)
seminal vesicles
unpaired gland; produces viscous secretion, stimulates sperm act and gives semen odor
prostrate gland
small-paired gland on side of pelvic urethra; secretes alkaline; neutralize pH; keep sperm alive; prepare passage
cowper’s gland / bulbourethral gland
erectile tissue that drains urine; organ of erection and ejaculation; introduces sperm to vagina
penis
in poultry series, penis can be intromittent (penetrates) - ___________ and none-intromittent (non-penetrating) ________
anseriformes and galliformes
(sheep male repro) retract / extend penis; erection in boar/sheep/pig always erect; need to be hidden
sigmoid flexure
