Reproductive systems Flashcards
Where do the following occur?
1) ovulation and oogenesis (egg creation)
2) fertilization
3) implantation
4) parturition
1) ovaries
2) oviduct (Fallopian tube)
3) endometrium (in uterus)
4) vagina (birth canal)
- which part of sperm contains hydrolytic enzymes?
- what is the purpose of these enzymes?
- acrosome
- sperm penetrates the egg by the means of these enzymes
mature sperm contain mitochondria in the…
mid piece
Pathway of sperm out of the body
seminiferous tubules —> vas deferns —> prostate —> urethra
pathway of a sperm on its way to fertilize an egg
1) urethra
2) epididymis
3) vagina
4) oviduct
5) ductus vas deferens
25134
epididymis - ductus vas deferens - urethra - vagina - oviduct
- name the male gland that produces semen
- removal of this gland would effect…
- prostate
- motility of sperm
- list 3 functions of seminal fluid
- semen definition
1) provides a suitable pH
2) supplies and energy source
3) causes the uterus to contract
- protective fluid supplies energy for sperm cells
what’s the function of epididymis
- store sperm cells and eliminate those that have major genetic defects
- also where sperm cells mature
a function of the interstitial cells of the testes is the …
production of testosterone
where does storage and maturation of sperm cells occur?
epididymis
the duct that’s used by both the reproductive and excretory systems in males is the…
urethra
2 examples of positive feedback loops caused by oxytocin
1) parturition- oxytocin causes baby’s head to push on the cervix, which sends nervous signals to brain to release more oxytocin
* needs estrogen: opens up oxytocin receptors on uterus.
2) lactation- increase of suckling/ crying = increase of oxytocin= increase of milk = more suckling
which hormone makes milk, and which releases it
- prolactin = make milk
- oxytocin= release milk
what is the effect of the hormone relaxin (which is a prostaglandin)
causes pelvis to open up
parturition
3 stages of parturition
1) dilation stage (cervix dilates)
2) expulsion stage (baby comes out)
3) placental stage (placenta needs to come out)