Testis Excretory Duct Histology

Question 1

What are the very short tubules that connect seminiferous tubules to the Rete testis?

Answer 1

Tubuli recti (straight tubules)

Question 2

What is the epithelium like in the tubuli recti?

Answer 2

Simple columnar

Question 3

What is the epithelium like in the rete testis?

Answer 3

Simple cuboidal

Question 4

Where is the rete testis located in the testicle?

Answer 4

Mediastinum

Question 5

What are the tubules that connect the mediastinum to the epididymis?

Answer 5

Efferent ductules

Question 6

How are the efferent ductules structured?

Answer 6

Conical spiral with apex toward mediastinum

Question 7

What does the epithelium in efferent ductules look like?

Answer 7

Tall cells (ciliated)
With alternating short cells (microvilli)

Question 8

What is the role of the short cells in the efferent ductules?

Answer 8

Resorb fluid from testis

Question 9

Which structure receives the contents of the efferent ductules?

Answer 9

Epididymis

Question 10

What is the epithelium like in the epididymis?

Answer 10

Pseudostratified columnar with stereocilia

Question 11

Where in the epididymis are most sperm seen in cross section?

Answer 11

Tail of epididymis

Question 12

What tissue surrounds the tubules in the epididymis?

Answer 12

Smooth muscle

Question 13

Where does the epididymis empty?

Answer 13

Vas deferens

Question 14

What is the structure of the mucosa in the vas deferens?

Answer 14

Pseudostratified columnar epithelium with sterocilia
Basement membrane
Fibroelastic lamina propria
Luminal folds

Question 15

What surrounds the mucosa in the vas deferens?

Answer 15

Three distinct layers of smooth muscle

Adventitia

Question 16

What are the three muscular layers of the vas deferens?

Answer 16

Inner longitudinal
Middle circular
Outer longitudinal

Question 17

What is the terminal dilation of the vas deferens called?

Answer 17

Ampulla