Hormonal regulation Of Embryology Stuff

Question 1

Gonadotrophin releasing hormone function.

Answer 1

Stimulates the secretion of fsh and lh

Synthesized in the hypothalamus

Question 2

FSH AND LH secreted by the…

Answer 2

Anterior pituitary gland

Question 3

In spermatogenesis, function of LH?

Answer 3

Stimulates testosterone production by the interstitial Leydig cells

Question 4

Function of FSH in spermatogenesis

Answer 4

Stimulates sertoli cells to support spermatogenesis. Stimulate testicular fluid production and synthesis of intracellular androgen receptor proteins

Question 5

Primordial follicle refers to

Answer 5

Primary oocyte together with flat epithelial follicular cells

Question 6

The arrested state of primary oocytes in the diplotene stage of meiosis 1 after birth is produced by

Answer 6

Oocyte maturation inhibitor

Question 7

What are graafian follicles

Answer 7

Follicular cells which have accumulated fluid and become swollen prior to ovulation

Question 8

When follicular cells change from flat to cuboidal as primordial follicles continue to grow they are known as

Answer 8

Granulosa cells. The unit is now a primary follicle

Question 9

Which hormone inhibits oocyte maturation inhibitor to stimulate follicular maturation at puberty

Answer 9

FSH

Question 10

Which hormone induces the pre ovulatory growth phase

Answer 10

LH Surge

Question 11

The secondary oocyte is arrested in …. , …. after ovulation

Answer 11

Metaphase 2, 3 hours

Question 12

Note that granulosa cells, in conjunction with theca interna produce

Answer 12

Oestrogen before ovulation. Which results in the endometrium entering the proliferative stage

Question 13

Progesterone is produced by …

Answer 13

Corpus luteum, under the influence of lh