Oviduct histology Flashcards Preview

HRM - Anatomy/Embryology/Histology > Oviduct histology > Flashcards

Flashcards in Oviduct histology Deck (29):
1

What are the divisions of the oviduct?

Ampulla
Isthmus
Intramural portion

2

How is the intramural segment different from the isthmus and ampulla hisotologically?

No folds (almost)
No cilia

3

What is outside the mucosa in the oviduct?

Lamina propria
Thick muscularis

4

When does tubular peristalsis occur?

Luteal phase

5

What are the anatomic divisions of the uterus?

Body
Fundus
Cervix

6

What are the layers of the uterus?

Endometrium (mucosa)
Myometrium (muscularis)
Perimetrium (serosa)

7

What is the epithelium like in the endometrium?

Simple tubular glands
Simple columnar epithelium with cilia

8

What are the zones of the endometrium?

Basal layer
Funcional layer

9

What is the role of the basal layer?

Not shed during menstruation
Regenerates functional layer

10

What are the two layers within the functional layer?

Superficial compact layer
Deep spongy layer

11

What changes do the smooth myocytes undergo during pregnancy?

Hypertrophy (~10x)
Hyperplasia

12

Where does the blood supply come from for the endometrium?

Uterine arteries
Arcuate arteries
Spiral arteries/Straight arteries
Capillaries

13

What are the five phases to the menstrual cycle?

Proliferative phase
Secretory phase
Premenstrual phase
Menstrual phase
Repair phase

14

What is the predominant hormone in the proliferative phase?

Estrogen

15

What is the predominant hormone in the secretory phase?

Progesterone

16

What layer thickens in the proliferative phase?

Functional layer

17

What do cells accumulate in the proliferative phase?

Glycogen

18

What phase is characterized by glandular growth, the further accumulation of glycogen, and elongation of coiled arteries?

Secretory phase

19

What do glands look like on cross section during the secretory phase?

Very tortuous
Sawtooth, perhaps

20

What happens during the premenstrual phase?

Constriction of coiled arteries in response to decreased progesterone
Anoxia induced tissue necrosis

21

What happens in them menstrual phase?

Functional layer of endometrium undergoes complete necrosis and is shed

22

Why does the blood not clot in the menstrual phase?

Presence of fibrolysin

23

What is the mucosa like for the cervix?

Simple columnar
Branching cervical glands

24

What hormones makes cervical secretion less viscous?

estrogen

25

Where is the transition to stratified squamous epithelium in the uterus?

External cervical os

26

Where do most precancerous and carcinoma lesions develop?

Squamocolumnar jxn

27

If the gland ducts become occluded, what pathological structure occurs?

Nabothian cyst

28

What effect does progesterone have on the cervical mucus?

Increases viscosity
Retards particle passage

29

What creates an acidic environment of the vagina?

Lactobacilli
Metabolizing glycogen into lactic acid