Male reproductive system histology Flashcards Preview

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Flashcards in Male reproductive system histology Deck (39):
1

What is the endocrine function of the the testes?

Produce testosterone

2

What is the exocrine function of the testes?

Produce sperm

3

Spermiogenisis is what part of the process?

The maturation process

4

Spermatocytogenisis refers to what?

Formation of the spermatogonia

5

Spermatogonial phase is related to what?

Mitosis

6

The spermatocyte phase is related to what?

Meiosis

7

The temperature in the scrotum needs to be ____ degrees. Why?

34 degrees celsius. This is the required temperature for sperm production

8

T/F there are different lobules in the testes?

True- each lobule contains seminiferous tubules

9

Which cells produce testosterone?

The leydig cells

10

The straight tubule is also called what?

Tubulus rectus

11

What houses the rete testis?

the mediastinum of the testes

12

What types of cells are found in the seminiferous tubules?

Sertoli cells
Spermatogenic cells

13

The seminiferous tubules are line with what type of cells?

Complex stratified epithelium

14

What is the role of the sertoli cells?

Support- create a physical barrier- a blood testes barrier

15

Spermatogonia are the most _______ of the cells.

immature

16

In the seminiferous tubes, where will spermatogonia be found?

Around the outside- the more mature the cell, the further it moves towards the center

17

Type A dark spermatogonia give rise to what?

More type A dark as well as type A pale spermatogonia

18

T/F type A pale spermatogonia are dedicated to move on

True

19

What type of division do type A and B go through?

Mitosis

20

What are the cells called sitting on the basal layer (the outside with cells growing inward)?

Spermatogonia (the most immature cells)

21

Type A pale and Type B spermatogonia begin to divide, what type of division is seen?

Meiosis

22

When the cells go through meiosis 1, what are they called?

Primary spermatocytes

23

Once the cell is going through meiosis 2, what is it called?

Secondary spermatocyte (won't see these)

24

Once meiosis 2 is finished, what is the cell called and where is it found?

spermatids- found towards the lumen (the center)

25

Straight tubules are lined with which cells?

sertoli cells

26

What is the rete testis?

interconnected network of channels lined with cuboidal/columnar epithelium with cilium and a few microvilli

27

What are the three excretory ducts?

Epididymis
Ductus deferens/vas deferens
Urethra

28

What are the three parts/divisions of the urethra?

Prostatic urethra
Membranous urethra
Spongy/penile urethra

29

There are three male accessory glands- what are they?

The seminal vesicles
The prostate gland
The bulbourethral glands

30

What do the male accessory glands produce?

Seminal fluid

31

What is seminal fluid?

It is the medium in which the sperm leave the male body

32

What is the shape of the nucleus of a sertoli cell?

Triangular

33

The seminal vesicles connect with what to form the ejaculatory duct?

the vas deferens (ductus deferens)

34

T/F The prostate gland is a collection of 30-50 tubuloalveolar glands.

T

35

From outside to inside, what are the levels of cells in the seminiferous tubules

Spermatogonia (type A and B- found on the outside)
Primary spermatocytes
Secondary spermatocytes
Spermatids

36

The prostate gland empties into what?

The prostatic urethra

37

What is the flow of the spermatocyte?

Starts in the seminiferous tubules, goes to the straight tubules, to the rete testes, to the efferent ductules- to the epididymis- to the ductus deferens- to the ejaculatory duct to the urethra and out

38

The bulbourethral glands (cowper's glands) empty into what?

The proximal part of the penile urethra

39

What needs to fill with blood in order for an erection to occur?

The two corpus cavernosum (dorsally paired)
The corpus spongiosum (single- ventral)