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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
Developing Embryos In the embryo, gonadotropin (LH) comes from the_______ and stimulates the interstitial cells (Leydig cells) to produce testosterone
placenta
26
Epithelium of seminiferous tubules
Complex stratified epithelium
27
Seminiferous Tubules Lined by complex stratified epithelium containing spermatogenic cells (____cells) and supporting cells (______cells)
germ Sertoli
28
Germ cells that proliferate near the base and slowly move upward toward free surface as they differentiate into spermatozoa
Spermatogenetic cells
29
= where sperm cells will eventually be released so that they can be transported towards the epididymis for maturation
Lumen
30
= maintains the barrier between blood and testis; responsible for maintaining blood-testis barrier
Sertoli cells
31
Cells that nourish the spermatogenic cells and divides the seminiferous tubules into basal and adluminal compartments
Sertoli cells
32
They are found near the base (basal compartment) to maintain the blood-testes barrier
Sertoli
33
In response to FSH = Sertoli produce ___________ protein which binds to the testosterone coming from the Leydig cells to concentrate them inside the tubules
androgen-binding
34
Sertoli cells produce______ which regulates negative feedback to FSH
inhibin
35
Engulf excess cytoplasm shed off from developing sperm cells
Sertoli cells
36
Spermatogenesis (enumerate 3 stages)
Spermatocytogenesis Spermatidogenesis Spermiogenesis
37
Spermatogenic cells base the base to the lumen
Spermatogonium Primary spermatocyte Secondary spermatocyte Spermatids Spermatozoa
38
Resting or reserve cells
Ad - dark staining
39
Act as Stem cells Stem cells cause they undergo multiplication thereby maintaining the number of spermatogenic cells
Spermatogonium
40
Found near the base Most immatures among the stages
Spermatogonium
41
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.
Spermatocytogenesis
42
Formation of the flagellar tail and acrosome Condensation of the nucleus Thickening of the midpiece
Spermiogenesis
43
Spermiogenesis 4 phases
Golgi phase Cap phase Acrosome phase Maturation phase

Histo LAB (13 decks)

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