Chapter 8 - Exam 2 Flashcards

1
Q

Follicular phase

A
  1. GnRH release
  2. Follicular development
  3. Estrus
  4. Ovulation
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2
Q

GnRH release

A

Tonic/pulsatile - (influenced by ⬆️P4)
Surge center - pro ovulation center

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3
Q

Follicular development

A

Follicular dynamics

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4
Q

Follicular dynamics

A

A. Recruitment
B. Selection
C. Dominance
D. Atresia

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5
Q

Recruitment

A

⬆️FSH +⬇️LH + ⬇️I + ⬇️E2 (5-20 follicle)

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6
Q

Selections

A

⬇️FSH +➡️LH + ⬇️I (1 follicle)

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7
Q

Dominance

A

⬇️FSH +⬆️LH + ⬆️I (only 1)

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8
Q

Atresia

A

Programmed cellular death

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9
Q

Effects of E2 on brain

A

⬆️ lordosis (mating posture)
⬆️ Phonation (sound)
⬆️ physical activity

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10
Q

Effects of E2 on repro tract

A

⬆️ blood flow
⬆️ edema of tissue (swelling)
⬆️secretion - mucus
⬆️ smooth muscle motility
⬆️ growth of uterine gland
⬆️ leukocytes

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11
Q

Draw estrus cycle

A
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12
Q

“Silent ovulation”

A

No behavioral estrus

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13
Q

Behavioral estrus

A

⬆️ physical activity
⬆️phonation
Lordosis

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14
Q

1st ovulation post parturition

A

Lack of P4 in 1st estrus cycle

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15
Q

“Suckling effect”

A

Mammary gland, affected newborns inhibiting,

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16
Q

suckling effect in cows

A

2 or less episodes, return to estrus, (remove calves 24-36 hours)

17
Q

Suckling effect in sows

A

@ weaning return to estrus in 4-8 days after removing piglets