Chapter 16: Core

Question 1

Name the muscles of the Local Core Musculature

Answer 1

Rotatores
Multifidus
Transverse Abdominus
Diaphragm
Pelvic Floor Muscles
Quadratus Lumborum

Question 2

Primary Actions of Rotatores

Answer 2

Stabilize and rotate spinal segments

Question 3

Primary Actions of Multifidus

Answer 3

Stabilize, rotate, and extend the spine

Question 4

Primary Actions of Transverse Abdominus

Answer 4

Increase intra-abdominal pressure

Question 5

Primary Actions of Diaphragm

Answer 5

Regulate inspiration

Question 6

Primary Actions of Pelvic Floor Muscles

Answer 6

Support contents of the pelvis

Question 7

Primary Actions of Quadratus Lumborum

Answer 7

Laterally flex the spine, elevate the pelvis

Question 8

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 8

1. Pelvic Floor Muscles (PFM)
2. Support the contents of the pelvis.
3. Local

Question 9

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 9

1. Quadratus lumborum
2. Laterally flex the spine; elevate the pelvis
3. Local

Question 10

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 10

1. Diaphragm
2. Regulate inspiration
3. Local

Question 11

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 11

1. Transverse Abdominus
2. Increase intra-abdominal pressure
3. Local

Question 12

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 12

1. Multifidus
2. Stabilize, rotate, and extend the spine.
3. Local

Question 13

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 13

1. Rotatores
2. Stabilize and rotate spinal segments
3. Local

Question 14

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 14

1. Rectus Abdominus
2. Trunk/Spine flexion, rotation, lateral flexion.
3. Global

Question 15

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 15

1. Erector Spinae
2. Trunk/Spine extension, rotation, lateral flexion
3. Global

Question 16

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 16

1. Internal Obliques
2. Spinal flexion, lateral flexion, ipsilateral rotation.
3. Global

Question 17

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 17

1. External Obliques
2. Spinal flexion, lateral flexion, contralateral rotation
3. Global

Question 18

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 18

1. Latisimus dorsi
2. Trunk/Spine Rotation (in addition to shoulder extension, adduction, and internal rotation)
3. Global

Question 19

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 19

1. Iliacus (hip flexor)
2. Hip flexion (in addition to hip adduction and external rotation)
3. Global

Question 20

Identify:
1. Muscle
2. Primary actions
3. Local or global?

Answer 20

1. Psoas (hip flexor)
2. Hip flexion (in addition to hip adduction and external rotation)
3. Global

Question 21

Primary actions of the rectus abdominus

Answer 21

Trunk/Spinal flexion, rotation, and lateral flexion.

Question 22

Primary actions of the external obliques.

Answer 22

Spinal flexion, lateral flexion, and contralteral rotation.

Question 23

Primary actions of the internal obliques.

Answer 23

Spinal flexion, lateral flexion, and ipsilateral rotation.

Question 24

Primary (core) actions of the latisimus dorsi.

Answer 24

Trunk/spinal rotation (as well as shoulder extension, adduction, and internal rotation).

Question 25

Primary actions of the iliacus.

Answer 25

Hip flexion (in addition to hip adduction and external rotation).

Question 26

Primary actions of the psoas.

Answer 26

Hp flexion (in addition to hip adduction and external rotation).

Question 27

Primary actions of the erector spinae.

Answer 27

Trunk/spinal extension, rotation, and lateral flexion.

Question 28

Name the muscles of the global core system.

Answer 28

Rectus abdominus External obliques Internal obliques Erector spinae Latisimus dorsi HIp flexors: iliacus & psoas