Lesson 6B (Part 1)

Question 1

What are the false pelvic muscles?

Answer 1

They are actually abdominal muscles but they extend down into the pelvis as well

Question 2

What are the muscles in the false pelvis? (2)

Answer 2

1. Iliopsoas muscle

2. Rectus abdominus

Question 3

What 2 muscles are considered iliopsoas muscles?

Answer 3

1. Psoas muscle

2. Iliacus

Question 4

What does the psoas major join?

Answer 4

The iliacus muscles

Question 5

Where does the psoas major join to the iliacus muscles?

Answer 5

At the iliac crest level

Question 6

Where does the iliopsoas muscle course?

Answer 6

Anteriorly along the linea terminalis

Question 7

What does the iliopsoas muscle travel over?

Answer 7

The pelvic brim

Question 8

What does the iliopsoas muscle insert on?

Answer 8

The lesser trochanter of the femer

Question 9

What is the most anterior muscle of the pelvic cavity?

Answer 9

The rectus abdominus muscle

Question 10

How does the rectus abdominus muscle sit compared to the linea alba?

Answer 10

Bilaterally

Question 11

What does the rectus abdominus muscle ascend from? And where does it stop?

Answer 11

Ascends from the pubis to the xiphoid process vertically

Question 12

What are the true deep pelvis muscle wall layers? (3)

Answer 12

1. Obturator internus
2. Piriformis
3. Pelvic diaphragm

Question 13

What 2 muscle make up the pelvic diaphragm?

Answer 13

1. Levator ani

2. Coccygeus

Question 14

What 2 muscle make up the levator ani?

Answer 14

1. Iliococcygeus

2. Pubococcygeus

Question 15

What are true pelvic muscle layer considered to be? (2)

Answer 15

1. The deepest muscles

2. Most internal muscles

Question 16

What are the 2 pelvic wall muscles?

Answer 16

1. Obturator internus

2. Piriformis

Question 17

What does the obturator internus muscle cover?

Answer 17

The anterolateral wall of the true pelvis

Question 18

Where does the obturator internus originate?

Answer 18

On the inner inferior aspect of the obturator foramen

Question 19

Where does the obturator internus cross and leave the pelvis?

Answer 19

Through the lesser sciatic notch

- makes a sharp turn to insert on the medial surface of the greater trochanter

Question 20

What action does the obturator internus muscle do?

Answer 20

It rotates the thigh

Question 21

Where does the piriformis muscle originate?

Answer 21

On the anterior surface of the sacrum

Question 22

What does the piriformis muscle pass through?

Answer 22

The greater sciatic notch

Question 23

Where does the piriformis muscle insert on?

Answer 23

On the greater trochanter of the femur

Question 24

What is the action of the piriformis muscle? (2)

Answer 24

1. Rotation

2. Abduction of the thigh

Question 25

What is the pelvic outlet muscles also known as?

Answer 25

The inferior pelvic aperture

Question 26

What are the pelvic outlet muscles? (3)

Answer 26

1. Pelvic diaphragm
2. Urogenital diaphragm
3. Perineum

Question 27

What make up the urogenital diaphragm? (2)

Answer 27

1. Transversus perineal

2. External urethral sphincter

Question 28

What do the pelvic outlet structures do?

Answer 28

Support the pelvic viscera

Question 29

Where is the perineum compared to the pelvic and urogenital diaphragms?

Answer 29

Externally

Question 30

How is the perineum divided? (2)

Answer 30

1. Deep

2. Superficial

Question 31

What is the deep portion of the perineum considered?

Answer 31

The urogenital diaphragm

Question 32

What is the superficial portion of the perineum considered? (2)

Answer 32

1. Urogenital triangle

2. Anal triangle