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Flashcards in Perineum Deck (20)
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1

what is the perineum?

an anatomical region located in the pelvis
diamond shaped structure

2

where is the perineum?

most inferior part of the pelvic outlet, located between the thighs

3

what is the perineum separated from the pelvic cavity superiorly by?

the pelvic floor

4

functionally, what does the perineum contain?

contains structures that support the urinary, genital and gastrointestinal viscera

5

vital roles of perineum?

micturition
defectation
sexual intercourse
childbirth

6

what are the 2 ways the boundaries of the perineum can be described?

structural and anatomical

7

what does the anatomical boundary of the perineum refer to?

its exact bony margins

8

what do the surface borders of the perineum describe?

the surface anatomy which marks the borders of the perineum

9

anterior anatomical border of perineum?

Pubic symphysis

10

posterior anatomical border of perineum?

The tip of the coccyx

11

lateral anatomical border of perineum?

Inferior pubic rami and inferior ischial rami, and the sacrotuberous ligament

12

anatomical border of perineum: roof?

The pelvic floor

13

anatomical border of perineum: base?

Skin and fascia

14

how can the perineum be subdivided?

by a theoretical line drawn transversely between the ischial tuberosities

15

what does the theoretical line drawn transversely between the ischial tuberosities split form?

the anterior urogenital and posterior anal triangles

16

what are the anterior urogenital and posterior anal triangles associated with?

different components of the perineum

17

when are the surface borders of the perineum best shown?

when the lower limbs are abducted, and a diamond shape is depicted

18

anterior surface (skin) boundary of the perineum?

Mons pubis in females, base of the penis in males

19

lateral surface (skin) boundary of the perineum?

Medial surfaces of the thighs

20

posterior surface (skin) boundary of the perineum?

Superior end of the intergluteal cleft