Anatomy Lecture 6 Urinary Continence Flashcards Preview

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Flashcards in Anatomy Lecture 6 Urinary Continence Deck (33)
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1

What separates the pelvic cavity from the perineum?

Pelvic floor

2

Name the compartments of the pelvic floor, from superior to inferior

Pelvic diaphragm
Muscles of perineal pouches
Perineal membranes

3

What does the pelvic diaphragm consist of?

Levator ani and coccygeus muscle groups

4

What does the appearance of the pelvic diaphragm resemble?

A sling

5

Where is the urogenital hiatus in relation to the pelvic diaphragm?

In the gap medial to its 2 anterior attachments

6

What does the urogenital hiatus contain?

Urethra and vagina

7

What forms the majority of the pelvic diaphragm?

Levator ani

8

Name the 3 parts of the levator ani

Puborectalis
Pubococcygeus
Iliococcygeus

9

When is the levator ani contracted?

Tonically contracted most of the time

10

When is the levator ani relaxed?

Defecation and urination

11

What is the nerve innervation to levator ani?

Pudendal nerve (S2, 3, 4)
Nerve to levator ani

12

What 'packs' the spaces deep to the pelvic diaphragm?

Endo-pelvic fascia

13

Name the 4 pelvic ligaments that provide support to pelvic organs

Uterosacral
Transverse cervical
Lateral ligament of bladder
Lateral rectal ligaments

14

What lies below the fascia covering the inferior aspect of the pelvic diaphragm?

Deep perineal pouch

15

What structure lies above the perineal membrane?

Deep perineal pouch

16

The deep perineal pouch contains the bulbourethral glands in males and Bartholin's glands in females. T or F

False, doesn't contain Bartholin's glands in females

17

Where is the deep perineal pouch in relation to levator ani?

Inferior

18

What is the perineal membrane formed of?

Thin sheet of tough, deep fascia

19

What are the lateral attachments of the perineal membrane?

Sides of the pubic arch

20

What structure lies below the perineal membrane?

Superficial perineal pouch

21

What are the contents of the superficial perineal pouch in males?

Root of the penis
Spongy urethra
Superficial transverse perineal muscle
Branches of pudendal nerve
Blood vessels

22

What part of the root of the penis contains the corpus spongiosum?

Bulb

23

What part of the root of the penis contains the corpus cavernosum?

Crura

24

What muscle covers the crura of the penis?

Ischiocavernosus

25

What muscle covers the bulb of the penis?

Bulbospongiosus

26

What muscles are contained in the superficial perineal pouch in males and females?

Superficial transverse perineal muscle
Bulbospongiosus
Ischiocavernosus

27

The pelvic floor ______ when couching, sneezing or vomiting

actively contracts

28

What do the external urethral sphincter, compressor urethrae and levator ani have in common?

All function of maintain urinary continence

29

How does the pelvic floor maintain fecal continence?

Puborectalis tonically contracted and shaped like a sling wrapped around the rectum

30

What do pregnancy, childbirth, chronic constipation, heavy lifting, obesity, chronic cough and menopause have in common?

Injury to pelvic floor