Reproductive System pt1

Question 1

Hypothalamus-Pituitary regulation of gonads

Answer 1

KNDy produce kisspeptin in hypothalamus
Kisspeptin stimulates release of GnRH
GnRH stimulates anterior pituitary
Releases LH and FSH which target the gonads

Question 2

Development of sexual dimorphism

Answer 2

Having two forms - XX & XY genotyping sex chromosomes
Genetic diversity

Question 3

Androgens

Answer 3

Male gonadal hormone
Mostly testosterone

Question 4

Estrogen

Answer 4

Female gonadal hormone

Question 5

Progestin

Answer 5

Female gonadal hormone

Question 6

Role of kisspeptin

Answer 6

Activation of hypothalamic GnRH neurons

Question 7

What is the product of SRY gene

Answer 7

Differentiation of indifferent gonads to testes

Question 8

What stimulates the development of male secondary sex characteristics

Answer 8

Testosterone

Question 9

Menopause is characterized by what

Answer 9

Cessation of ovarian function

Question 10

5 a-reductase deficiency would result in what

Answer 10

Failure of embryonic and fetal development of male external genitalia

Question 11

Gonadotropin hormone levels during the life span of a female

Answer 11

Gonadotropin levels increase to high levels with cessation of ovarian function

Question 12

Surge in LH associated with ovulation is due to what

Answer 12

Rapid increase in secretion of estrogen by the dominant follicle
(Positive feedback to Ant Pituitary)

Question 13

Required precursor molecule for synthesis of gonadal hormones

Answer 13

Cholesterol