Trunk Mm

Question 1

Internal oblique

O:

I:

Answer 1

O: Inguinal ligament, iliac crest, thoracolumbar fascia

I: 10-12 ribs, abdominal aponeurosis

Question 2

External oblique

O:

I:

Answer 2

O: lower 8 ribs

I: iliac crest, linea alba

Question 3

Transverse abdominus

O:

I:

Answer 3

O: Inguinal ligament, iliac crest, thoracolumbar fascia, 7-12 ribs

I: abdominal aponeurosis, linea alba

Question 4

Quadratus lumborum

O:

I:

Answer 4

O: iliac crest

I: 12 rib, L1-L5 TP

Question 5

Diaphragm

O:

I:

Answer 5

O: xiphoid process, ribs, L1-L5

I: central tendon

Question 6

Erector spinae

O:

I:

Answer 6

O: SP, TP, post ribs. Occipital to sacrum

I: SP, TP, post ribs. Occipital to sacrum

Question 7

Rectus abdominus

N:

A:

Answer 7

N: 7-12 intercostal

A: flex trunk, compress abdomen

Question 8

Internal oblique

N:

A:

Answer 8

N: 8-12 intercostal, iliohypogastric, ilioinguinal

A: Bi-flex trunk, compress abdomen
Uni- lat bend, rotation same side

Question 9

External oblique

N:

A:

Answer 9

N: 8-12 intercostal, iliohypogastric, ilioinguinal

A: Bi- flex trunk, compress abdomen
Uni- lat bend, rotation opposite side

Question 10

Transverse abdominus

N:

A:

Answer 10

N: 7-12 intercostal, iliohypogastric, ilioinguinal

A: compress abdomen

Question 11

Quadratus lumborum

N:

A:

Answer 11

N: T12-L1

A: lat bend trunk

Question 12

Diaphragm

N:

A:

Answer 12

N: phrenic C3-C5

A: inspiration

Question 13

Erector spinae

N:

A:

Answer 13

N: spinal nerves

A: Bi- ext trunk and neck
Uni- lat bend trunk and neck

Question 14

Rectus abdominus

O:

I:

Answer 14

O: pubis

I: xiphoid process, 5-7 rib costal cartilage

Question 15

What are the 3 erector spinae medial-lateral

Answer 15

• Spinalis
• longissimus
• iliocostalis