Topic 17 - Reproductive System Flashcards
What is located within the scrotum?
Gonads
What is surrounded by 2 tunics (tunica vaginalis and tunica albuginea)?
gonads
which tunica is not in female?
vaginalis
tunica vaginalis
- outer serous membrane
- derived from peritoneum
tunica albuginea
- inner fibrous capsule
- extends unward to divided testes into lobules
gonads = testes
- located within the scrotum (skin +CT)
- surrounded by 2 tunics
- each lobule contains:
- ?
- ?
- seminiferous tubules
- leydig cells (interstitial cells)
gonads = testes
each lobule contains: seminiferous tubules
- produces what
- tubules unite to form what
- walls contain what kind of cells?
- produces sperm (spermatogonesis)
- tubules unite to form rete testis
- walls contain germ cells and sertoli cells
seminiferous tubules
what part of the wall is in various stages of development?
germ cells
seminiferous tubules
walls contain: sertoli cells (sustentocytes)
- surround what
- extend from?
- support and nourish?
- have ____ junctions - forms what and protects what from what
- produces?
- for transport in
- responds to?
- surround developing gametes
- extend from basement membrane to lumen
- support and nourish germ cells
- have tight junctions
- forms blood testis barrier
- protects sperm from immune system, toxins, drugs
- produce testicular fluid
- for transport in lumen
- respond to FSH
gonads = testes
each lobule contains: leydig cells (interstitial cells)
- located in what tissue between what?
- secretes?
- in CT between seminiferous tubules
- secrete testosterone (hormone)
surround developing gametes
sertoli cells of seminiferous tubules
extend from basement membrane to lumen
sertoli cells of seminiferous tubules
support and nourish germ cells
sertoli cells of seminiferous tubules
have tight junctions - form blood-testis barrier which protects sperm from immune system, toxins, drugs, rtc
sertoli cells of seminiferous tubules
produce testicular fluid for transport in lumen
sertoli cells of seminiferous tubules
respond to FSH
sertoli cells of seminiferous tubules
in CT between seminiferous tubules
leydig cells
secrete testosterone
leydig cells
Ducts
- from seminiferous tubules to ________
- then into _____ system:
- ?
- ?
- ?
- ?
- then into _____ system:
- from seminuiferous tubules to rete testis
- then into duct system:
- epididymis
- vas (ductus) deferens
- ejaculatory duct
- urethra
- then into duct system:
ducts
duct system: epididymis
- posterior border of _____
- stores ____
- sperm _______ (develop ability to swim)
- posterior to border of testis
- store sperm
- sperm mature (Develop abulity to swim)
ducts
then into duct system: vas (ductus) deferens
- enters where?
- loops over posterior bladder
- vasectomy = vas daferens ____ and ____ ____
- spermatic cord - contains?
- enters pelvic cavity
- loops over posterior bladder
- vasectomy = vas deferens cut and tied off
- spermatic cord - contains vas deferens, nerves (ANS) veins, artery, lymph vessels, skeletal muscle
ducts:
then into duct system: ejaculatory duct
- formed by
formed by union of vas deferens + duct from seminal vesicle
urethra
- how many regions and what are they called? (with detail)
3 regions
- prostatic - through prostate
- membranous - through urogenital diaphragm
- penile (spongy) - through corpus spongiosum of penis
- opens at the glans penis