Histology Of Ovary

Question 1

The ovary is covered by a single layer of cuboidal (almost squamous cells) known as

Answer 1

Germinal épithélium

Question 2

Epithelium is continuous with mesothelium lining the —-

Answer 2

Mesovarium

Question 3

A dense connective tissue layer called the ———— lies between the germinal layer and the cortex

Answer 3

Tunica albuginea

Question 4

Cortex consists of

Answer 4

Connective tissue stroma
Scattered smooth muscle fibres present in stroma around the follicles
ovarian follicles

Question 5

Medulla contains

Answer 5

Loose connective tissue 
Blood vessels
Nerves 
Lymphatics
Located in central portion of ovary

Question 6

Hilus cells of medulla are similar to interstitial cells of testis and secrete

Answer 6

Androgens

Question 7

Why is the germinal epithelium misnomer

Answer 7

The epithelium does not produce germ cells

Question 8

Oogonia develop from

Answer 8

primordial stem cells in Yolk sac endoderm

Question 9

Primary oocyte is arrested at

Answer 9

Prophase of 1st meiosis

Question 10

Primary oocyte completes the first méiotic division just before ———

Answer 10

Ovulation

Question 11

Secondary oocyte remains arrested at ——— till fertilisation occurs

Answer 11

Metaphase

Question 12

Ovulation takes place while the oocyte is in _______

Answer 12

Metaphase

Question 13

Primordial follicle

Answer 13

Primary oocyte surrounded by follicular cells (flattened squamous cells)
Oocyte arrested in prophase of meiosis 1
The outer surface of these cells is separated from connective tissue by basal lamina

Question 14

Primary follicle

Answer 14

Flattened follicular cells become cuboidal

Zona pellucida appears between the follicular cells and the oocyte

Question 15

Late primary follicle

Answer 15

Multilayered mass of granulosa cells surrounding the oocyte
Innermost Layer of granulosa cells is adjacent to zona pellucida
The outermost layer of these cells rests on the Basal lamina which is adjacent to the stroma cells

Question 16

Secondary follicle

Answer 16

Antrum filled with follicular fluid is visible in stratum granulosum
Multiple layers of theca interna cells and theca externa cells can be seen outside the basal lamina of the secondary follicle

Question 17

Theca interna

Theca externa

Answer 17

Theca interna: cellular layer, cells are epithelium
Display the characteristic of endocrine cells steroid secreting cells
Theca externes
Connective tissue layer
Cells are spindle shaped

Question 18

Graafian follicle

Answer 18

The antral cavities coalesce to form one large cavity
The follicle increases in size
Oocyte surrounded by a mould of follicular cells called cumulus oophorus
Follicular cells that surround the Antral cavity are referred to as the membrana granulosa

Question 19

Corpus luteum

Answer 19

After ovulation the walls of the follicle collapses and becomes infolded
Blood vessels and stromal cells now invade the granulosa cells
The granulosa cells and theca interna cells become large and accumulate lipid
Become pale staining