working REPRO (Si) Flashcards
1
Q
Purpose of Reproduction
A
to continue the species
2
Q
Male Repro System
A
- 2 testes
- ductal system
- access glands
- Penis
3
Q
Testicles
A
- 2 of them
- located in SCROTUM (hanging sac cooler than body, hangs hi in cold for warmth)
- Contains SEMINIFEROUS tubules
- Location of SPERMATOGENISIS
4
Q
Testosterone
A
Develop male secondary sex characteristics (hair, deep voice, adams apple, muscle mass)
5
Q
Sperm
A
- HEAD (acrosomal cap) - an organelle, contains digestive enzymes to break through egg
- MID PIECE, contains mitochondria
- TAIL, mobility
6
Q
Lifespan of sperm
A
- bed sheet/tissue: few hrs (until dry)
- in water (tub): longer, wet/warm
- vagina (acidic, not hospitable)
7
Q
Time for sperm to reach an egg
A
5 min - 1 hr
8
Q
Male Repro ducts
A
- Epididymis
- vas deferns (ductus deferens)
- ejaculatory duct
- urethra
9
Q
Seminiferous Tubules
A
- in testes
- 1-3 per teste
- location of spermatogenisis
10
Q
Epididymis
A
coiled tube on posterior of teste. stores sperm to maturity (1 mos)
- 4-6m
- stems from RETES TESTES which stem from seminiferous tubules
- ENDS @ start of Vas Deferens
11
Q
Vas Deferens
A
aka Ductus Deferens
Epididymis -> pelvic cavity -> loops over bladder -> joins w seminal vesicle -> to form ejaculatory duct
12
Q
Vasectomy
A
- Spermatic Cord (BV, nerves, vas deferens)
- sever both vas deferens’
- causes male sterility
- ejaculate w be seminal fluid w no sperm
POST OP
- Sperm analysis tests to confirm no sperm
- no sex for 1 week
13
Q
Ejaculatory Duct
A
- located behind bladder
- formed by union of Vas Deferens + Seminal vesicle
- duct passes through prostate gland, joins w urethra
14
Q
Flow of ducts - STEVE
A
ST- seminiferous tubules
E- epididymis
V- vas deferens
E- ejaculatory duct
Leads to urethra
15
Q
Urethra
A
- bladder to end of penis
- urinary meatus, external opening of urethra
- urethral sphincter, prevents simultaneous flow of urine and semen (at base of prostate gland)
