female anat histology & pracs

Question 1

Answer 1

The granulosa luteal cells are larger and clearer, as they contain lipids (cholesterol). This is the substrate for steroid production, primarily progesterone to maintain the pregnancy. They also produce some estrogen, from androgens supplied by the theca luteal cells.

The theca luteal cells are smaller and stained darker (due to less cytoplasm) than the granulosa luteal cells. They also produce progesterone, but continue to produce some androgens that they supply to the granulosa luteal cells to produce some estrogen.

Question 2

what are the small dark purple dots in this corpus albicans?

Answer 2

- Macrophages enter via the enhanced blood vasculature

• Supply proteases which help break down the collagen
• Corpus albicans eventually entirely degraded

Question 3

Answer 3

Question 4

Answer 4

Question 5

Answer 5

• secondary follicle

Question 6

Which one is primary follicle and which is secondary?

Answer 6

• Primary = single layer of granulosa cells → the left one
• secondary follicles = multiple layers of granulosa cells → left and middle follicles

Question 7

Answer 7

Question 8

Label the secondary follicle

Answer 8

Question 9

label another secondary follicle

Answer 9

Question 10

What stage is the oocyte here?

Answer 10

Question 11

Answer 11

Question 12

Answer 12

Question 13

What species have multiple follicles? (what is the name of these species)

Answer 13

• polytocous species (multiple follicles will mature and olvulate each cycle)
• sow, bitch, queen etc.

Question 14

What is this structure?

Answer 14

Question 15

Answer 15

Question 16

Label the ovarian structures:

• CL, Follicles, antral follicle etc.

Answer 16

• Antral follicle disappears because it is a fluid filled structure so you are left with a collapsed pocket where the follicle was

Question 17

Bovine ovary

• unique structure of bovine ovary is….

Answer 17

• corpus haemorrhagicum is unique feature of the bovine ovary

Question 18

What can we see here?

Answer 18

Question 19

bovine ovary, what can we see?

Answer 19

active CL and antral follicle

Question 20

sheep ovary: what structures can we see here

Answer 20

Question 21

what species is this from? what other species could it be?

Answer 21

pig (sow)

• lots of follicles developing for multi litter species
  *

Question 22

structure of granulosa cells in primordial follicles verse primary follicles are…

Answer 22

squamous/flattened cells in primordial follicles and single cuboidal granulosa cells in primary follicles