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Histo LAB > Male Rep > Flashcards

Male Rep Flashcards

1
Q

External Genitalia

A

Penis
Pair of Testes suspended in scrotum (fold of skin)
Epididymis

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2
Q

is sac of skin that hangs from the pelvis between the legs

A

Scrotum

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3
Q

optimum temperature for spermatogenesis to happen

A

34C

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4
Q

Accessory Glands

A

Seminal vesicles
Prostate gland
Bulbourethral glands

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5
Q

Contribute secretions to the seminal fluid (Accessory glands)

Only 5-10% of the fluid in the semen is from the

60% is from the______(main contributor)

A

testes

seminal vesicle

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6
Q

Ovoid in shape and is located within the scrotum
Both exocrine and endocrine (same with ovaries of females)

A

Testes

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7
Q

If the embryo has the________

_______ will encode for the production of testosterone

A

Y chromosome

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8
Q

Clitoris ->

A

Glans Penis

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9
Q

Labia minora ->

A

Spongy urethra

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10
Q

Labia majora ->

A

Scrotum

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11
Q

majora
This is the reason why testes are produced in the_______

With the presence of________, the testes will now start to migrate downwards to become enclosed in the________

A

abdomen

testosterone

scrotum

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12
Q

= folds that clever the testes

A

Tunica vaginalis

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13
Q

= in intimate contact with testes

A

Visceral layer tunica vaginalis

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14
Q

Dense irregular connective tissue covering of the testes

A

Tunica albuginea

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15
Q

is already present during the time the testes were formed in the abdomen

A

Tunica albuginea

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16
Q

Acts as a capsule to the testes = composed of dense irregular connective tissue

A

Tunica albuginea

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17
Q

parietal and visceral layers of the tunica vaginalis have _________ epithelium

A

simple squamous

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18
Q

Tunica albuginea

Forms connective tissue______ which divide testis into_______ lobules

each testes lobule contains ______ seminiferous tubules and interstitial connective tissue

A

septa - 250 lobules

3-4

19
Q

= where sperm cell are produced

A

Seminiferous tubules

20
Q

On a cross section of testis, seminiferous tubules are surrounded by__________ connective tissue.

A

interstitial

21
Q

Cell in the interstitium are called

A

Leydig cells

22
Q

= free spaces within seminiferous tubules

A

Interstitium

23
Q

Interstitial cells of Leydig

Found in the interstitium in between seminiferous tubules

Synthesizes_________ in response to the hormone______ from the adenohypophysis

A

testosterone

LH

24
Q

What activates leydig

A

Luteinizing Hormone

25
Q

Developing Embryos
In the embryo, gonadotropin (LH) comes from the_______ and stimulates the interstitial cells (Leydig cells) to produce testosterone

A

placenta

26
Q

Epithelium of seminiferous tubules

A

Complex stratified epithelium

27
Q

Seminiferous Tubules
Lined by complex stratified epithelium containing spermatogenic cells (____cells) and supporting cells (______cells)

A

germ
Sertoli

28
Q

Germ cells that proliferate near the base and slowly move upward toward free surface as they differentiate into spermatozoa

A

Spermatogenetic cells

29
Q

= where sperm cells will eventually be released so that they can be transported towards the epididymis for maturation

A

Lumen

30
Q

= maintains the barrier between blood and testis;

responsible for maintaining blood-testis barrier

A

Sertoli cells

31
Q

Cells that nourish the spermatogenic cells and divides the seminiferous tubules into basal and adluminal compartments

A

Sertoli cells

32
Q

They are found near the base (basal compartment) to maintain the blood-testes barrier

A

Sertoli

33
Q

In response to FSH = Sertoli produce ___________ protein which binds to the testosterone coming from the Leydig cells to concentrate them inside the tubules

A

androgen-binding

34
Q

Sertoli cells produce______ which regulates negative feedback to FSH

A

inhibin

35
Q

Engulf excess cytoplasm shed off from developing sperm cells

A

Sertoli cells

36
Q

Spermatogenesis (enumerate 3 stages)

A

Spermatocytogenesis

Spermatidogenesis

Spermiogenesis

37
Q

Spermatogenic cells base the base to the lumen

A

Spermatogonium

Primary spermatocyte

Secondary spermatocyte

Spermatids

Spermatozoa

38
Q

Resting or reserve cells

A

Ad - dark staining

39
Q

Act as Stem cells

Stem cells cause they undergo multiplication thereby maintaining the number of spermatogenic cells

A

Spermatogonium

40
Q

Found near the base
Most immatures among the stages

A

Spermatogonium

41
Q

The initial stage of spermatogenesis in which the spermatogonia repeatedly divide by mitosis to produce a continuous supply of identical cells as some of them later develop into primary spermatocytes.

A

Spermatocytogenesis

42
Q

Formation of the flagellar tail and acrosome
Condensation of the nucleus
Thickening of the midpiece

A

Spermiogenesis

43
Q

Spermiogenesis
4 phases

A

Golgi phase
Cap phase
Acrosome phase
Maturation phase

Histo LAB (13 decks)

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