Male Reproductive System Flashcards

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1
Q

What are testicles?

A

Primary organ of male repro system, produce sperm and testosterone

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2
Q

What cell generates spermatozoa?

A

Seminiferous tubules

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3
Q

What cell produces testosterone?

A

Leydig cells

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4
Q

What structure is the site of storage for spermatozoa to mature?

A

Epididiymis (Savings account)

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5
Q

What is the scrotum?

A

It is the 2 lobed sac that contains and protects the testicles. It regulates temperature of the testicles

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6
Q

What is the tube that transports sperm cells from the epidiymis to the urethra?

A

Vas deferens

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7
Q

What are the 3 accessory glands and their functions?

A
  1. Seminal Vesicle: secretes the major portions of seminal fluids that add volume to ejaculate
  2. Bulbourethral gland: Secretes the gel portion or ejaculate
  3. Ampulla: Important for bulls rapid ejaculation
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8
Q

What is the male organ of copulation?

A

The penis

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9
Q

What is the retractor penis muscle?

A

It relaxes during mating and ejaculation and allows the sigmoidal flexure to straighten

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10
Q

What is the S-shape portion of the penis which straightens during mating and ejaculation?

A

Sigmoidal Flexure

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11
Q

What is the Glands Penis?

A

Corkscrew tip in boars or top of penis that is sensitive to pressure

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12
Q

What are the several differences between poultry male tracts and other farm animals?

A
  1. Testes are contained in the abdominal wall
  2. Each vas deferens opens into small papillae located in the cloaca wall
  3. Male poultry have no penis
  4. Male poultry have a rudimentary organ or copulation
  5. Sperm is stored in the oviduct and is capable of fertilizing eggs for:
    - 30 days in turkeys
    -10 days in chickens
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13
Q

What does underfeeding do to sperm?

A

Decreases cell formation

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14
Q

What happens to sperm when there is a deficiency in Vitamin A or protein?

A

Reduced amount of viable sperm

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15
Q

How do extreme high temperatures affect sperm?

A

Decrease in spermatozoa formation, increase non viable sperm

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