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ANSC 3080 > Exam - Male Repro: General Anatomy > Flashcards

Exam - Male Repro: General Anatomy Flashcards

1
Q

what is the main function of male reproductive organs

A

to produce and deliver spermatozoa to the female

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2
Q

what is key for the male reproductive system

A

temperature control

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3
Q

what is the temperature that testes must be kept for spermatogenesis

A

4-6C below

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4
Q

what is required during the late part of gestation or early life

A

testicular decent via the inguinal canal

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5
Q

what is temperature controlled by later in life

A

the veins of the pampiniform plexus

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6
Q

what does the pampiniform plexus form

A

countercurrent heat exchanger

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7
Q

where is the pampiniform plexus

A

the spermatic cord

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8
Q

where are the testes located

A

the scrotum

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9
Q

what is the scrotum

A

skin sac from the abdominal cavity with a layer of smooth muscle

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10
Q

what is the layer of smooth muscle on scrotum

A

tunica dartos

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11
Q

what is in the inside of the scrotum

A

layers of connective tissue

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12
Q

what are the layers of connective tissue called in the scrotum

A

scrota fascia
parietal vaginal tunic

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13
Q

what covers the scrotum

A

a layer of vascularized connective tissue

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14
Q

what are the vascularized connective tissue that cover the testes

A

tunica albuginae
visceral vaginal tunic

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15
Q

what does the layer of vascularized connective tissue covering the testes project

A

septa in the tests

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16
Q

what covers the septa

A

smooth muscles to help move immature sperms

17
Q

what are the 2 major parts inside the testes

A

seminiferous tubules
interstitium

18
Q

what are the seminiferous tubules the site of

A

sperm production

19
Q

what are the seminiferous tubules

A

ducts collect sperm to rete testis in the center –> tubes that bring the sperm to the epididymis

20
Q

what is the interstitium composed of

A

connective tissue
nerve
blood vessels
leydig cells

21
Q

what do leydig cells produce

A

testosterone

22
Q

what are the boar testis structure similar to

A

the bull

23
Q

difference between bull and boar testies

A

the boar has more pronounced interstitium

24
Q

why is the boar intersitium more pronounced than the bulls

A

Leydig cells produce a wider array of androgens, C16, C19 steroids plus estrogens

25
Q

what is a consequence of the boar testes location

A

it is against the abdominal cavity of which reduced the efficiency of heat exchange

26
Q

why do boars have a large volume

A

large seminal vesicles

27
Q

what do the bulbo-urethral glands in boars produce

A

gel

28
Q

why do bulbs-urethral glands in boars produce gel

A

they are large

29
Q

characteristics of boar ejaculation

A

copious ejaculate and prolonged ejaculation

30
Q

do boars have smaller or larger sperm reserves compared to bulls

A

smaller

ANSC 3080 (41 decks)

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