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GI tract > Male reproductive system histology > Flashcards

Male reproductive system histology Flashcards

1
Q

What is the endocrine function of the the testes?

A

Produce testosterone

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2
Q

What is the exocrine function of the testes?

A

Produce sperm

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3
Q

Spermiogenisis is what part of the process?

A

The maturation process

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4
Q

Spermatocytogenisis refers to what?

A

Formation of the spermatogonia

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5
Q

Spermatogonial phase is related to what?

A

Mitosis

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6
Q

The spermatocyte phase is related to what?

A

Meiosis

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7
Q

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

A

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

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8
Q

T/F there are different lobules in the testes?

A

True- each lobule contains seminiferous tubules

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9
Q

Which cells produce testosterone?

A

The leydig cells

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10
Q

The straight tubule is also called what?

A

Tubulus rectus

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11
Q

What houses the rete testis?

A

the mediastinum of the testes

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12
Q

What types of cells are found in the seminiferous tubules?

A

Sertoli cells

Spermatogenic cells

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13
Q

The seminiferous tubules are line with what type of cells?

A

Complex stratified epithelium

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14
Q

What is the role of the sertoli cells?

A

Support- create a physical barrier- a blood testes barrier

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15
Q

Spermatogonia are the most _______ of the cells.

A

immature

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16
Q

In the seminiferous tubes, where will spermatogonia be found?

A

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

17
Q

Type A dark spermatogonia give rise to what?

A

More type A dark as well as type A pale spermatogonia

18
Q

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

A

True

19
Q

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

A

Mitosis

20
Q

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

A

Spermatogonia (the most immature cells)

21
Q

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

A

Meiosis

22
Q

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

A

Primary spermatocytes

23
Q

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

A

Secondary spermatocyte (won’t see these)

24
Q

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

A

spermatids- found towards the lumen (the center)

25
Q

Straight tubules are lined with which cells?

A

sertoli cells

26
Q

What is the rete testis?

A

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

27
Q

What are the three excretory ducts?

A

Epididymis
Ductus deferens/vas deferens
Urethra

28
Q

What are the three parts/divisions of the urethra?

A

Prostatic urethra
Membranous urethra
Spongy/penile urethra

29
Q

There are three male accessory glands- what are they?

A

The seminal vesicles
The prostate gland
The bulbourethral glands

30
Q

What do the male accessory glands produce?

A

Seminal fluid

31
Q

What is seminal fluid?

A

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

32
Q

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

A

Triangular

33
Q

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

A

the vas deferens (ductus deferens)

34
Q

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

A

T

35
Q

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

A

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

36
Q

The prostate gland empties into what?

A

The prostatic urethra

37
Q

What is the flow of the spermatocyte?

A

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
Q

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

A

The proximal part of the penile urethra

39
Q

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

A

The two corpus cavernosum (dorsally paired)

The corpus spongiosum (single- ventral)

GI tract (14 decks)

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