Uterus: histology, neurovascular, ligaments Flashcards Preview

Repro anatomy > Uterus: histology, neurovascular, ligaments > Flashcards

Flashcards in Uterus: histology, neurovascular, ligaments Deck (34)
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1

what is The fundus and body of the uterus are composed of?

3 tissue layers:
peritoneum
myometrium
endometrium

2

what is the peritoneum? continuous with?

A double layered membrane, continuous with the abdominal peritoneum

3

what is the peritoneum of the uterus also known as?

the perinetrium

4

what is the myometrium?

The thick smooth muscle layer

5

what do cells of myometrium undergo during pregnancy? why?

hypertrophy and hyperplasia
in preparation to expel foetus at birth

6

what is the endometrium of the uterus?

An inner mucous membrane lining the uterus

7

how can the endometrium of the uterus be subdivided?

into 2 parts:
the stratum basalis
the stratum functionalis

8

what is Deep stratum basalis? (function)

Changes little throughout the menstrual cycle and is NOT shed at menstruation

9

what is Superficial stratum functionalis? (function)

Proliferates in response to oestrogens, and becomes secretory in response to progesterone
(endometrial lining)

10

when is the Superficial stratum functionalis shed?

during menstruation

11

what does Superficial stratum functionalis regenerate from after shedding during menstruation?

regenerates from cells in the stratum basalis layer

12

what provides support for the uterus?

The tone of the pelvic floor

13

what are the ligaments supporting the uterus?

Broad Ligament
Round Ligament
Ovarian Ligament
Cardinal Ligament
Uterosacral Ligament

14

what is the broad ligament?

a double layer of peritoneum

15

what does the broad ligament attach?

attaches the sides of the uterus to the pelvis

16

what does the broad ligament act as?

a mesentery for the uterus and contributes to maintaining it in position

17

what is the round ligament a remnant of?

the gubernaculum

18

where does the round ligament extend?

extending from the uterine horns to the labia majora via the inguinal canal

19

function of the round ligament?

maintain the anteverted position of the uterus

20

what does ovarian ligament join?

Joins the ovaries to the uterus

21

where is the Cardinal Ligament located?

Located at the base of the broad ligament

22

where does the cardinal ligament extend?

from the cervix to the lateral pelvic walls

23

what does the cardinal ligament contain?

the uterine artery and vein

24

function of the cardinal ligament?

providing support to the uterus

25

Uterosacral Ligament extends?

from the cervix to the sacrum

26

function of Uterosacral Ligament?

provides support to the uterus

27

blood supply to uterus?

uterine artery

28

venous drainage of the uterus?

via a plexus in the broad ligament that drains into the uterine veins

29

lymphatic drainage of the uterus?

iliac, sacral, aortic and inguinal lymph nodes

30

where do sympathetic fibres of the uterus arise from?

uterovaginal plexus