unit k reproduction Flashcards
3 structures involved in the production of semen
- testes/epididymis
- prostate
- seminal vesicles
Which 3 glands produce semen
- Cowper’s gland
- Prostate gland
- seminal vesicles
What are the major parts of the male reproductive system
- Testes
- duct system
- Accessory glands
- Penis
What is the duct system in the male reproductive system
- Epididymis
- Vas deferens
Role of epididymus
coiled tubes in each testicle that connect to vas deferens
role of vas deferens
muscular tube outside of testicles that transports semen.
What are seminal vesicles
sac-like structures attached to vas deferens on side of bladder
role of prostate gland
produces parts of semen, surrounds ejaculatory ducts at base of urethra below bladder.
role of cowper’s gland
pea-shaped, beneath prostate, produce secretion that protects sperm.
What are the 5 steps to make a sperm cell
- cells in testes go through mitosis (identical copy)
- cell copies go through meiosis to become spermatids
- spermatids go to epididymus through involuntary contraction.
- Spermatids grow a tail, become sperm.
- Stored in epididymus until time to leave.
What happens during male orgasm
Erectile tissue fills with blood, vessels are compressed, urethra closes urine off.
How much sperm is in semen ejaculate
usually about 400 million
Parts of female reproductive system
- Vagina
- Cervix
- Uterus
- Fallopian tube
What are the fallopian tubes
Narrow tubes that serve as pathways from ovaries to uterus.
path of an egg in pregnancy
- Ovaries
- Fallopian tube (where fertilization occurs)
- Uterus
