New Terms Exam 2 Flashcards Preview

Anatomy 6511 > New Terms Exam 2 > Flashcards

Flashcards in New Terms Exam 2 Deck (19)
1

Ovaries - Endocrine

Produce endrogens, estrogens, and progestogens

2

Estrogens

promote the growth and maturation of internal and external sex organs; development of the secondary female sex characteristics; promote breast development.

3

Progestogens

prepare internal sex organs (primarily uterus) for pregnancy by promoting changes in endometrium; prepare mammary glands for lactation.

4

Exocrine ovaries

xocrine function, as the ovaries produce the female gamete (i.e. ovum); gametogenesis; specifically the ovaries produce and ovulate a secondary oocyte.

5

Primary Oocyte

Arrested in prophase - surrounded by follicular cells, forming primordial follicle.

6

Embryo oocyte dev.

Primordial germ cells - Oogonia -- primary occyte during embryology

7

atresia,

However, beginning at the fifth month of fetal life and throughout the woman’s lifetime, primary oocytes undergo a slow degenerative processes called atresia, defined as spontaneous death and subsequent reabsorption.

8

• Three basic types of ovarian follicles:

1. Primordial follicles
2. Growing follicles
a. Primary follicles
1) Early or Unilaminar primary follicles
2) Late or Multilayered or Multilaminar primary follicles
b. Secondary (Antral) follicles
3. Mature or Graafian follicles - ovulate secondary oocytes

9

Ecentric

Off-center nucleus

10

Theca Interna

cuboidal secretory cells; in response to LH, these cells synthesize and secrete androgens (i.e. precursors of estrogen); endocrine function; also fibroblasts, collagen bundles, and lots of blood vessels.

11

• Theca folliculi (follicular theca)

is the sheath of connective tissue cells that develop from the stromal cells surrounding the developing follicle.

12

Theca Externa

heca externa – fibrous outer portion; smooth muscle cells, fibroblast, and bundles of collagen.

13

Corpus Luteum

Granulosa and theca interna cells after ovulation. These undergo hypertrophy and produce progesterone. Cells of theca interna only increase slightly in size. Thecaleutin cells still produce estrogens.

14

Corpus Albicans

Primarily collagen.

15

Uterus layers

Perimetrium, myometrium, endometrium

16

Periimetrium

Outermost layer, adventitia or seros

17

Myometrium

Muscular/middle layer - smooth muscle separated by connective tissue with vascularization. 4 layers

18

Endometrium

Simple columnar epithelium, underlying lamina propria. This layer contains uterine glands. Has 2 parts - deeper basal layer (stratum basale), stratum funcitonali. Thickness of functional layer changes on hormones - removed monthly.

19

Spermatogenesis

3 parts- Spermatogonial phase (mitosis)
Spermatocyte phase - meiosis
Spermiogenesis - maturation process of sperm