6 – Female Reproduction I Flashcards
1
Q
Ovary function
A
- Development of female gamete (oocyte) for fertilization
- Produce and secret sex steroid hormones to regulate reproductive health
2
Q
Ovary divided into 2 distinct regions
A
- Outer cortex
o Ovarian follicles - Inner medulla
o Blood vessels
o Nerves
o Connective tissue - *opposite orientation in mares but contents are the same
3
Q
Folliculogenesis
A
- Development of ovarian follicles from immature to mature form
4
Q
2 stages of folliculogenesis
A
- Resting phase: primordial follicles
- Growth phase
4
Q
Folliculognesis stages
A
- Primordial
- Primary
- Early secondary
- Secondary
- Antral (early and late)
- Preovulatory
o Ovulation OR follicular death by atresia
5
Q
Primordial follicles
A
- Specific number at birth
- Primary oocyte surrounded by a single layer of flat follicular cells
6
Q
Ruminant primordial follicle
A
- Equally distributed in cortex
7
Q
Carnivores primordial follicle
A
- In clusters in the cortex
8
Q
Bipotential gonad
A
- Development of a testis OR ovary
9
Q
3 cell populations during gonad transformation to ovaries
A
- Granulosa cells
- Theca cells
- Primordial germ cells
*3 components of the follicle
10
Q
Granulosa cells
A
- Supporting cells
- Subtype of somatic cells
11
Q
Theca cells
A
- Steroidogenic cell precursors
- Subtype of somatic cells
12
Q
Primordial germ cells
A
- Become oocytes through the OOGENESIS
13
Q
Where does the ovary development commence?
A
- Mesonephric surface epithelium in location of future gonadal ridge
14
Q
Primary follicle
A
- When epithelium around primary oocyte becomes cuboidal
15
Q
Secondary follicle
A
- 2-6 layers of granulosa cells
- Theca cells
- Zona pellucida material
16
Q
Theca cells
A
- Typical steroid-producing cells
- Additional somatic cell layer
