Topic 17 - Reproductive System

Question 1

What is located within the scrotum?

Answer 1

Gonads

Question 2

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

Answer 2

gonads

Question 3

which tunica is not in female?

Answer 3

vaginalis

Question 4

tunica vaginalis

Answer 4

• outer serous membrane
• derived from peritoneum

Question 5

tunica albuginea

Answer 5

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

Question 6

gonads = testes

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

Answer 6

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

Question 7

gonads = testes

each lobule contains: seminiferous tubules

• produces what
• tubules unite to form what
• walls contain what kind of cells?

Answer 7

• produces sperm (spermatogonesis)
• tubules unite to form rete testis
• walls contain germ cells and sertoli cells

Question 8

seminiferous tubules

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

Answer 8

germ cells

Question 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?

Answer 9

• 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

Question 10

gonads = testes

each lobule contains: leydig cells (interstitial cells)

• located in what tissue between what?
• secretes?

Answer 10

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

Question 11

surround developing gametes

Answer 11

sertoli cells of seminiferous tubules

Question 12

extend from basement membrane to lumen

Answer 12

sertoli cells of seminiferous tubules

Question 13

support and nourish germ cells

Answer 13

sertoli cells of seminiferous tubules

Question 14

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

Answer 14

sertoli cells of seminiferous tubules

Question 15

produce testicular fluid for transport in lumen

Answer 15

sertoli cells of seminiferous tubules

Question 16

respond to FSH

Answer 16

sertoli cells of seminiferous tubules

Question 17

in CT between seminiferous tubules

Answer 17

leydig cells

Question 18

secrete testosterone

Answer 18

leydig cells

Question 19

Ducts

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

Answer 19

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

Question 20

ducts

duct system: epididymis

• posterior border of _____
• stores ____
• sperm _______ (develop ability to swim)

Answer 20

• posterior to border of testis
• store sperm
• sperm mature (Develop abulity to swim)

Question 21

ducts

then into duct system: vas (ductus) deferens

• enters where?
• loops over posterior bladder
• vasectomy = vas daferens ____ and ____ ____
• spermatic cord - contains?

Answer 21

• 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

Question 22

ducts:

then into duct system: ejaculatory duct

• formed by

Answer 22

formed by union of vas deferens + duct from seminal vesicle

Question 23

urethra

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

Answer 23

3 regions

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