Topic 17 - Reproductive System Flashcards Preview

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Flashcards in Topic 17 - Reproductive System Deck (24):
1

What is located within the scrotum? 

Gonads

2

What is surrounded by 2 tunics (tunica vaginalis and tunica albuginea)?

gonads

3

which tunica is not in female?

vaginalis

4

tunica vaginalis

  • outer serous membrane
  • derived from peritoneum

5

tunica albuginea 

  • inner fibrous capsule
  • extends unward to divided testes into lobules

 

6

gonads = testes

  • located within the scrotum (skin +CT)
  • surrounded by 2 tunics
  • each lobule contains:
    • ?
    • ?

  1. seminiferous tubules
  2. leydig cells (interstitial cells)

7

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

8

seminiferous tubules

what part of the wall is in various stages of development?

germ cells

9

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

10

gonads = testes

each lobule contains: leydig cells (interstitial cells)

  • located in what tissue between what?
  • secretes? 

  • in CT between seminiferous tubules
  • secrete testosterone (hormone)

11

surround developing gametes

sertoli cells of seminiferous tubules

12

extend from basement membrane to lumen 

sertoli cells of seminiferous tubules

13

support and nourish germ cells

sertoli cells of seminiferous tubules

14

have tight junctions - form blood-testis barrier which protects sperm from immune system, toxins, drugs, rtc

sertoli cells of seminiferous tubules

15

produce testicular fluid for transport in lumen

sertoli cells of seminiferous tubules

16

respond to FSH

sertoli cells of seminiferous tubules

17

in CT between seminiferous tubules

leydig cells 

18

secrete testosterone 

leydig cells

19

Ducts

  • from seminiferous tubules to ________
    • then into _____ system:
      • ?
      • ?
      • ?
      • ?

  • from seminuiferous tubules to rete testis
    • ​then into duct system:
      • epididymis
      • vas (ductus) deferens
      • ejaculatory duct
      • urethra

20

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)

21

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

22

ducts:

then into duct system: ejaculatory duct

  • formed by 

formed by union of vas deferens + duct from seminal vesicle

23

urethra

  • how many regions and what are they called? (with detail)

3 regions

  1. prostatic - through prostate
  2. membranous - through urogenital diaphragm
  3. penile (spongy) - through corpus spongiosum of penis
    • opens at the glans penis

24