Reproductive Endocrinology Of Placental Mammals Flashcards
1
Q
The Egg
A
- Eggs mature at different times in different animal species. Some animals have a haploid female pronucleus at fertilization (sea urchin), some enter last round of meiosis (mammals).
2
Q
Oogenesis
A
3
Q
Human female reproductive system
A
4
Q
Events In The Ovary
A
5
Q
Events In The Endometrium Of The Uterus
A
6
Q
How Is Ovulation Regulated By The Luteinizing Hormone?
A
- Induced Ovulators: LH surges by copulation
- Most Mammals: Spontaneous ovulators
- Have Menstrual cycles or estrus cycles
- Estrus coincides with ovulation
7
Q
LH Is A Gonadotropin
A
- Sex hormone production and secretion
8
Q
FSH Is A Gonadotropin
A
- Sperm production in males; follicle development and secretion in females
9
Q
Spermatogenesis: Formation of sperm
A
10
Q
The Human Male Reproduction System
A
11
Q
Sperm Cell Diagram
A
12
Q
Leydig Cells Secrete Testosterone during….
A
- sex determination in the utero
- after birth (function unknown)
- during adulthood (post-puberty)
13
Q
What Is Sperm competition?
A
- mammals that have multiple mates have larger testis to “outcompete” the others by making more sperm
14
Q
Positive Feedback During Birth
A
15
Q
Mammary glands and lactation
A
- Mammary glands are exocrine glands with ducts
- Alveoli: glandular structure
- Contain secretory epithelial cells
- Lactation can prevent estrus/ovulation because of production of prolactin
