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ANS 331 > Male Repro > Flashcards

Male Repro Flashcards

1
Q

What is the male repro syst composed of?

A

Spermatic cord, testis, epididymis, accessory Sex glands, penis

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2
Q

Products of male repro syst

A

Spermatozoa, testosterone, inhibit, estrogen, proteins

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3
Q

Spermatozoa are produced where?

A

Testes

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4
Q

The rete testis converge what?

A

Seminiferous tubules into efferent ducts

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5
Q

What are the functions of the epididymis?(3)

A

Storage, maturation, transport unused spermatids

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6
Q

Why are the smooth muscle contractions in the tail of the epididymis stopped?.

A

Because spermatozoa mature and are stored there until ejaculation -

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7
Q

Are spermatids in the tail of the epidiclymis capable of fertilizations?

A

Yes

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8
Q

Spermatozoa travel through what in an ejaculation?

A

Vas deferens into pelvic urethra

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9
Q

What suspends the testis in the scrotum?

A

Spermatic cord

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10
Q

What is the spermatic cord composed of?

A

Vasculature, lymphatics. Nerves, vas deferens, cremaster muscle,pampiniform plexus and testicular artery

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11
Q

The pampiniform plexus is composed of a network of what?

A

Veins

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12
Q

What is the method of exchange of heat in the spermatic cord?

A

Counter current

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13
Q

Testosterone is exchanged from the blood in veins back into testis in what?

A

Pampiniform plexus

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14
Q

The temperature gradient that is achieved by the pampiniform plexus is?

A

4-6° C

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15
Q

How does the cremaster control temp. Of testis?

A

By raising and lowering them

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16
Q

Does the cremaster have pumping action?

A

Yes

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17
Q

What is a method of regulation of temp of rams that is unique to them?

A

Respiration rate

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18
Q

Can testes be retripenitoreal?

A

Yes

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19
Q

What part of the male repro syst uses sweat glands as a method of thermoregulation ?

A

Scrotum

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20
Q

Where is the tunica dartos muscle?

A

Under scrotal skin

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21
Q

The tunica dartos is under local or systemic control?

A

Local (testosterone)

22
Q

The testis are composed of:

A

Tunica albuginea, seminiferous tubules, mediastinum and cells

23
Q

What forms lobules in the testis?

A

Tunica albuginea

24
Q

Sertoli cells are inside or outside the seminiferous tubules?

A

Inside

25
Q

Sertoli cells are under control of what hormone?

A

FSH

26
Q

What cells are found on the outside of seminiferous tubules and produce LH?

A

Leydig cells

27
Q

The blood testis barrier work based on what cells?

A

Peritubular cells

28
Q

Why is the blood testis barrier important?

A

Because once meiosis occurs, spermatids (DNA inside each) are considered foreign to the body

29
Q

The tight junctions between Sertoli cells prevent what?

A

Macromolecules or phagocytes to enter adluminal compartment

30
Q

The epididymis is under the control of what hormone?

A

Testosterone

31
Q

Does ejaculation occur in the distal or proximal epididymis?

A

Distal

32
Q

What is the 3rd function of the epididymis?

A

Flush out unejaculated spermatids

33
Q

A high concentration of spermatozoa would be found where?

A

In the epididymis

34
Q

Where can you find a low concentration of spermatids dissolved by rete fluid?

A

In the efferent ducts

35
Q

What are extragonadal reserves?

A

Sperm cells that can be ejaculated

36
Q

We can increase distal/ EGR reserves by doing what?

A

False mounting, observation

37
Q

What hormone is released to increase muscle contractions for EGR s?

A

Oxytocin

38
Q

Does overuse increase or decrease distal reserves?

A

Decrease

39
Q

If the cytoplasmic droplet is present in an ejaculate sample it’s considered abnormal. What could be a reason for this?

A

Overuse

40
Q

What is the buffer, nutrient, lubrication, and non-cellular part of an ejaculate?

A

Seminal plasma

41
Q

How many glands/parts are involved in the production of seminal plasma? Which are they?

A

5:epididymis, ampulla, vesicular, prostate, bulbourethral

42
Q

What gland provides the gel-like fraction of seminal plasma?

A

Bulbourethral

43
Q

What does the prostate gland provide?

A

Clean environment of urethra pre-ejaculation

44
Q

What species only has a prostate gland as an accessory gland?

A

Dog

45
Q

What gland provides the milky portion of seminal plasma?

A

Vesicular

46
Q

What is the copulatory organ in males?

A

Penis

47
Q

The 3 parts of the penis are:

A

Base, shaft, glans penis

48
Q

What part of the penis can engorge blood during excitation or erection?

A

Shaft

49
Q

What type of penis is always contracted in the body cavity while not in use?

A

Fibroelastic

50
Q

Vascular penises rely on what ?

A

Blood engorgement

51
Q

The corpus cavernosum allows what?

A

Blood influx

52
Q

What surrounds the penile urethra?

A

Corpus spongisum

ANS 331 (12 decks)

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