Axial Muscles - Spine Muscles

Question 1

Sternocleidomastoid

Answer 1

O: Sternum and Clavicle

I: Mastoid Process

A: Extends and Rotates Head, Flexes Spine

Question 2

Scalenus

Answer 2

O: Transverse Processes of C-Spine

I: 1st and 2nd Rib

A: Flexes and Rotates Neck

Question 3

Spinalis (Cervicis & Thoracis)

Erector Spinae

Answer 3

O: Spinous and Transverse Processes, Posterior Ribs from Occiput to Sacrum and Ilium

I: Spinous and Transverse Processes, Posterior Ribs from Occiput to Sacrum and Ilium

Cervicis A: Extends and Rotates Head

Thoracis A: Extends Spine

Question 4

Longissimus (Capitus, Cervicis, Thoracis, & Lumborum)

Erector Spinae

Answer 4

O: Spinous and Transverse Processes, Posterior Ribs from Occiput to Sacrum and Ilium

I: Spinous and Transverse Processes, Posterior Ribs from Occiput to Sacrum and Ilium

Capitus A: Rotates Head & Pulls Backward

Cervicis A: Extends and Laterally Flexes C-Spine

Thoracis A: Extension, Lateral Flexion of spine, Rib Rotation

Lumborum A: Extends & Rotates spine

Question 5

Iliocostalis (Cervicis, Thoracis, Lumborum)

Erector Spinae

Answer 5

O: Spinous and Transverse Processes, Posterior Ribs from Occiput to Sacrum and Ilium

I: Spinous and Transverse Processes, Posterior Ribs from Occiput to Sacrum and Ilium

Cervicis A: Extends C-Spine

Thoracis A: Extension, Lateral Flexion of spine, Rib Rotation

Lumborum A: Extension, Lateral Flexion of spine, Rib Rotation

Question 6

Splenius Capitis

Answer 6

O: Lower half of Nuchal Ligaments, Spinous Processes of C7 - T3

I: Lateral Occipital bone, Mastoid Process

A: Extends and Rotates Head

Question 7

Splenius Cervicis

Answer 7

O: Spinous Processes of T3 - T6

I: Transverse Processes of C1 - C3

A: Extends and Rotates Head

Question 8

Semispinalis Capitus

Transversospinalis

Answer 8

O: Transverse Processes

I: Spinous Processes of vertebra above

A: Rotates Head and Pulls Backward

Question 9

Semispinalis Cervices

Transversospinalis

Answer 9

O: Transverse Processes

I: Spinous Processes of vertebra above

A: Extends and Rotates Spine

Question 10

Semispinalis Thoracis

Transversospinalis

Answer 10

O: Transverse Processes

I: Spinous Processes of vertebra above

A: Extends and Rotates Spine

Question 11

Rotatores Thoracis

Transversospinalis

Answer 11

O: Transverse Processes

I: Spinous Processes of vertebra above

A: Extends and Rotates Spine

Question 12

Multifidus

Transversospinalis

Answer 12

O: Transverse Processes

I: Spinous Processes of vertebra above

A: Extends and Rotates Spine

Question 13

Longus Capitus
Longus Colli Cervices
Rectus Capitus Anterior
Rectus Capitus Lateralis

(Prevertebral Muscles)

Answer 13

O: Bodies and Transverse Processes of C2 - T2

I: Occiput, Transverse Processes and Bodies of C1 - C6

Long. Cap. A: Flexes Head

Long. Col. Cerv. A: Flexes C-spine

Rec. Cap. Anterior A: Flexes Head

Rec. Cap. Lateralis A: Bends Head Laterally

Question 14

Rectus Capitus Posterior Major
Rectus Capitus Posterior Minor
Obliquus Capitus Superior
Obliquus Capitus Inferior

(Suboccipital Muscles)

Answer 14

O: Transverse & Spinous Processes C1 - C2

I: Occiput and Transverse Processes of C1

A: Extension of head and neck w/ some lateral bending and rotation

Question 15

Psoas Major

Answer 15

O: Anterior & Lateral surfaces of T12 - L5

I: Lesser trochanter of femur

A: Flexes thigh at hip joint and vertebral column

Question 16

Quadratus Lumborum

Answer 16

O: Iliac Crest

I: 12th Rib, Transverse Processes of all Lumbar vertebra

A: Lateral Flexion of Spine

Question 17

Intertransversarii

Answer 17

O: Transverse Process below

I: Transverse Process above

A: Lateral Flexion of Spine

Question 18

Interspinalis

Answer 18

O: Spinous Process below

I: Spinous Process above

A: Trunk Extension