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Animal Science > Male Repro > Flashcards

Male Repro Flashcards

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Biology 101 flashcards
1
Q

Testes

A

Produces sperm and testosterone (secondary male characteristics)

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2
Q

Epididymis

A

Passageway of sperm from testes to vas defernes

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3
Q

Head

A

Sperm not capable of fertilization or motility

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4
Q

Body

A

Sperm gain motility

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5
Q

Vas Deferens

A

Transport sperm from testes to penis

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6
Q

Accessory Sex Glands

A

Secrete components of seminal fluid

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7
Q

Penis

A

Fibroelastic (Most farm animals) or vascular type (stallion)

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8
Q

What are the main functions of the Male Reproduction System?

A

*Produce and maintain supply of sperm
*Detect females in estrus
*Inseminate females and fertilize the female gamete

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9
Q

BSE (Breeding Soundness Exam

A

*fertility
* how many?
* body condition

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10
Q

Spermatic Cord (testes)

A

contains vas defers, pan-uniform plexus, and external cremaster muscle nerves (raise muscle)

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11
Q

Tunica Albuginea

A

Connective tissue which holds testis together (white covering on ovary or teste)

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12
Q

Seminiferous Tubule

A

Sperm producing cells (true germinal epithelium)

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13
Q

Rete Testis

A

Function in sperm transport from seminiferous tubules (100)

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14
Q

Caput Epididymis (Head)

A

Function in maturation of spermatozoa fluid absorption

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15
Q

Corpus Epididymis (Body)

A

Maturation of spermatozoa

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16
Q

Cauda Epididymis (Tail)

A

Final maturation and storage, only sperm capable of fertilization

17
Q

What animal does NOT have sigmoid Flexure

A

Horses

18
Q

Fibroelastic

A
  • boar, bull, ram
  • fibrous, hard sheath of connective tissue all the way through penis
  • penis does not expand in diameter (rigid and extends)
19
Q

Vascular

A
  • Stallion & humans
  • penis increases in diameter and length when aroused
  • “bells out” to plug cervix of female during ejaculation
20
Q

Scent

A

Flehmen Response (exposure of nasoplatine duct to absorb pheromones)

21
Q

Cryptordisms

A
  • lack of tests resent into scrotum and thus thermoregulation is absent (Horses)
22
Q

Bilateral

A
  • sterile
  • no spermatogenesis
  • testosterone is produced
23
Q

Unilateral

A
  • fertile
    *reduced sperm producing capacity
24
Q

Testis descent occurs late

A

(common in boars and stallions)

25
Q

What factors effect thermo regulation of Testis?

A
  1. Location
  2. Insulation
  3. Sweat Glands
  4. Tunica Dartos Muscle
  5. Blood Supply to Testis
26
Q

What part of the Epidiimyis is the coolest point?

A

Tail

27
Q

What kills sperm cells?

A

Elevated Temperature

28
Q

Lower sperm count and motility in very high temperatures

A

True

Animal Science (31 decks)

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