PELVIC FLOOR

Question 1

Pelvic Floor - Functions

Structure
Supports
Pressure regulation
Spincter Control
Childbirth

Answer 1

Structure:
- dome shaped sheet of muscle + fascia
Supports:
- pelvic and abdominal viscera
Pressure regulation:
- intra-abdominal pressure
Spincter Control:
- anus, vagina, urethra
Childbirth:
- forms a “gutter” -> foetal head

Question 2

Identify the Muscles of the Pelvic Floor

Answer 2

Question 3

Fascia of the Pelvic Floor:
pubocervical fascia (bladder/vag)
rectovaginal/rectovescial
uterosacral (suspends and supp uterus + cervix)

Answer 3

structure:
- loose CT, adipose tissue, smooth muscle
function:
- conduit for vessels/nerves
- helps maintain organ position

Question 4

The Perinuem
- divisons
- borders

Answer 4

Divisons:
1. urogenital triangle (A): perineal body, ischiocav, bulbospong, transverse peroneal
2. anal triangle (P): coccyx, isch tub, ST lig

Borders:
- pubic symphysis, coccyx, ischial tuber, inf pubic rami, ST lig

Question 5

Peroneal Body:
- structure
- location
- what

Answer 5

structure:
- irregular fibromusc mass
location:
- bw anus and vag/bulb of penis
what:
- conqurence point for muscles / fascia

Question 6

Nerve supply:
- pelvic floor
- perineal muscles

Answer 6

Pelvic floor:
- nerve to levator Ani (some input from pudenal nerve)
Perineal muscles:
- nerve to pudeneal nere (some input from LA)

Question 7

Label the perineum

Answer 7