lecture 34 - reproduction Flashcards
what are gonads
organs that produce gametes (sex cells)
what are spermatozoa and where are the produced
male gamete produced in the testes
what are oocytes and where are they produced
female gametes produced in the ovaries
is the pelvic inlet closed or open
open
is the pelvic outlet closed or open
closed by muscles
which is bigger the pelvic inlet or outlet
inlet is always bigger
what is the location of the false / greater pelvis and what does it contain
- superior region
- above pelvic inlet
- contains = parts of the GI tract
what is the location of the true / lesser pelvis and what does it contain
- inferior region
- between inlet and outlet
- contains internal reproductive organs
what is the difference between male and female pelvis
male
- narrower subpubic angle
- curved coccyx
- heart shaped inlet
female
- broader subpubic angle
- oval inlet
- straighter coccyx
what does the pelvic floor close over
the pelvic outlet
what are the two muscles in the pelvic floor
levator ani and caccygeus
what is the perineum
region inferior to the pelvic floor and between upper region of the thighs = includes genetalia and anus
what is the anterior triangular division of the male perineum
urogenital triangle = urethral opening, external genitalia
what is the prosterior triangular division of the perineum
anal triangle = anal canal and fat
what is the function of the male reproductive system
to produce and transport spermatozoa into the female reproductive tract
what does the scrotum contain
- two testes
- two epididymides
- two spermatic cords
what do the testes produce
sperm, testosterone and inhibin
what are the seminiferous tubules
lobules inside the testes
what do seminiferous tubules join to form
rete testis
what do rete testis join to form
efferent ductules leading to epididymis
what do interstitial endocrine cells produce
testosterone
what do nurse cells produce
inhibin
what do spermatogenic cells produce
spermatogonia and spermatozoa at varies stages of development
what is the epididymis and where do sperm enter and exit
really long coiled tube
sperm enter = seminiferous tubules
sperm exit = ductus deferens
what occurs at the epididymis
site of sperm maturation
what do the ductus deferens continue from
from epididymis
what are the ductus deferens covered in
smooth muscle
what are ejaculatory ducts
formed by the union of the duct from seminal vesicle and ampulla
what are the three sections of the male urethra
- prostatic urethra
- membranous urethra
- penile / spongy urethra
what is the internal urethral sphincter made of
detrusor (smooth) muscle
