Chapter 8 - Exam 2 Flashcards
Follicular phase
- GnRH release
- Follicular development
- Estrus
- Ovulation
GnRH release
Tonic/pulsatile - (influenced by ⬆️P4)
Surge center - pro ovulation center
Follicular development
Follicular dynamics
Follicular dynamics
A. Recruitment
B. Selection
C. Dominance
D. Atresia
Recruitment
⬆️FSH +⬇️LH + ⬇️I + ⬇️E2 (5-20 follicle)
Selections
⬇️FSH +➡️LH + ⬇️I (1 follicle)
Dominance
⬇️FSH +⬆️LH + ⬆️I (only 1)
Atresia
Programmed cellular death
Effects of E2 on brain
⬆️ lordosis (mating posture)
⬆️ Phonation (sound)
⬆️ physical activity
Effects of E2 on repro tract
⬆️ blood flow
⬆️ edema of tissue (swelling)
⬆️secretion - mucus
⬆️ smooth muscle motility
⬆️ growth of uterine gland
⬆️ leukocytes
Draw estrus cycle
“Silent ovulation”
No behavioral estrus
Behavioral estrus
⬆️ physical activity
⬆️phonation
Lordosis
1st ovulation post parturition
Lack of P4 in 1st estrus cycle
“Suckling effect”
Mammary gland, affected newborns inhibiting,