copy 2

Question 1

Where is the intestitial tissue that supports the seminiphrous tubules derived from?

Answer 1

Tunica vascolusa

Question 2

What is the route of the sperm from the seminephrous tubules all the way till the vagina?

Answer 2

Intra-testicular Ducts
5. Seminiferous tubules (Long-Convoluted part)
↓
6. Seminiferous tubules (Short-Straight part)
↓
7. Rete testis
Extra-testicular Ducts or Excurrant duct system
↓
8. Efferent ductules
↓
9a. Head of epididymis
↓
9b. Body of epididymis
↓
9.c Tail of epididymis
↓
10. Vas/Ductus deferens (scrotum, inguinal canal, pelvis =NYC)
↓
Ejaculatory duct (on urinary vesicle)
After Vas deferens mergy-mergy with duct of seminal vesicle
Fast food pick up 1 from seminal vesicle
↓
Urethra
Prostatic urethra mergy-mergy with ducts of prostate gland
Fast food pick up 2 from prostate gland
Membranous urethra
Penile urethra
↓
Vagina, Cervix, Uterus. Fallopian tube (rendezvous in Tokyo with ovum)

Question 3

What is the epithelium of the rete testis?

Answer 3

Simple cuboidal
Single apical cilium, Few short apical microvilli

Question 4

What is the epithelium of the Efferent ductules?

Answer 4

Both Pseudo-stratified columnar with cillia and cuboidal with microvilli

Cells: 1 cuboidal cells with microvilli, 2 columnar cell with cilia, 3 basal stem cells

Uneven lumen from alternating cuboidal and columnar cells

Question 5

What is the epithelium of the epididymis?

Answer 5

Pseudo-stratified columnar with stereocilia (giant microvilli)

Cells: 1 Tall Principal cells: columnar cells with stereocilia; 2 Short basal stem cells

Question 6

What is the difference in the layers of the smooth muscle of the tail and head of the epididmyis?

Answer 6

Head: thin, single layer of circular smooth muscle

Tail: thick, three layers:
Inner L; Middle C; Outer L smooth muscle

Question 7

What is the epithelium of the vas deferens?

Answer 7

Same as Epididymus; Deep longitudinal mucosal folds

Pseudo-stratified columnar with stereocilia
Cells: 1 columnar cells, 2 basal stem cells

Question 8

What are the layers of the smooth muscle of the vas deferens?

Answer 8

Same as tail of Epididymus
L: inner longitudinal
C: middle circular
L: outer longitudinal

Question 9

What is unique about the smooth muscle layer of the efferent ductules?

Answer 9

Circular smooth muscle first appears