Chapter 16

Question 1

explain the formation of eggs

Answer 1

formation begins during foetal development. cells in ovary undergo a number of divisions but stop dividing before any eggs are actually formed. immature eggs remain in resting phase for many years.

Question 2

what is a primary follicle

Answer 2

dormant egg within the ovary. formed when cells within the ovary surround each immature egg to produce a sphere composed of a single layer of cell. occurs before puberty

Question 3

what is a secondary follicle

Answer 3

cells creating the wall of the primary follicle begin to enlarge and divide, creating a layer of cells around the developing egg. secretions of these new cells create a fluid filled space that forces the egg to the edge of the follicle. occurs during puberty

Question 4

what is a mature follicle

Answer 4

when the secondary follicle continues to enlarge and produces a bulge in the ovary. also called Graafian follicle

Question 5

what is ovulation

Answer 5

when mature follicle bursts and expels the egg. moves through uterine tube

Question 6

what are the 7 structures that make up the ovarian cycle

Answer 6

1. Primary Follicle
2. developing follicle
3. secondary follicle
4. mature follicle
5. ruptured follicle (ovulation)
6. Corpus Luteum
7. Corpus Albicans

Question 7

what is the corpus luteum

Answer 7

when the ruptured follicle collapses and the blood inside forms a clot. Clot slowly absorbed by remaining follicle cells which enlarges. secretes hormones that affect development of uterus lining

Question 8

what is the corpus albicans

Answer 8

fibrous mass of scar tissue left on the ovary after the corpus luteum degenerates

Question 9

what is the menstrual cycle

Answer 9

regular series of changes that take place in the walls of the uterus

Question 10

what is the endometrium

Answer 10

soft mucous membrane lining the uterus