Male Reproductive Anatomy and Physiology Flashcards
(44 cards)
how can we alter/improve reproduction?
artificial/in vitro insemination
why do we alter/improve reproduction?
species control
what are the five stages of male reproduction (sperm cycle)
- sperm production
- sperm maturation
- sperm storage
- sperm packaging
- sperm delivery
what is sperm production called?
spermatogenesis
where does sperm production take place?
in the testes
what is the male primary sex organ
testes
what structures make up the testes?
seminiferous tubules, scrotal sac, and endocrine and exocrine glands
what do the seminiferous tubules do?
they are where the sperm mature
what does the scrotal sac do?
thermal regulation, by raising or lowering testes and through blood vessels, AND protection
what do the endocrine and exocrine glands of the testes do?
hormone and sperm production
what are the three regions of a sperm cell?
head, midpiece, and tail
what does the head of sperm do?
houses nucleus (DNA)
what does the midpiece of sperm do?
houses mitochondria (energy!)
what does the tail of sperm do?
acts as a propeller for movement
are all sperm perfect?
no, there’s lots of possible defects
name some sperm defects
two tails, broken tail, crooked/hooked tail
what specific cells produce testosterone in the testes?
Leydig cells
what specific cells produce estrogen in the testes?
Sertoli cells
where does sperm mature and get stored?
epididymis
what happens to the sperm in the epididymis head and body?
transport and maturation
is the sperm fully motile once it reaches the epididymis?
no
when can sperm technically bond to an oocyte?
once it reaches the epididymis body
what happens to sperm in the epididymis tail?
storage/ejaculation
where is sperm packaged?
in the accessory glands
