Pet3323 Lab Exam 1 - Neck And Vertebral Column Muscles

Front 1

Action of Erector Spinae

Back 1

Prime mover of back extension

Front 2

Action (3) of Iliocostalis

Back 2

Extend vertebral Column.
Maintain Posture.
Bends column to same side.

Front 3

Action (3) of Longissimus

Back 3

Extend Vertebral Column.
Bends to same side.
Extends head and turns face to same side.

Front 4

Action of Spinalis

Back 4

Extend vertebral column.

Front 5

Action (2) of Semispinalis

Back 5

Extends vertebral column and head (rotates to opposite side).
Acts with SCM of opposite side.

Front 6

Action of Multifidis

Back 6

Stabilize Spine

Front 7

Action (2) of Quadratus Lumborum

Back 7

Flexes vertebral column laterally when acting separately.
Extends lumbar spine and 12th rib is flexed when acting together.
Assists in forced inspiration.

Front 8

Action (2) of Sternocleidomastoid

Back 8

Head flexiun.
Alone each muscle rotates head towards shoulder and tilts head to its own side.

Front 9

Action (2) of Scalenes

Back 9

Elevates first 2 ribs (inspiration).
Flex and rotate neck.

Front 10

Action (4) of Rectus Abdominus

Back 10

Flex and rotate lumbar vertebrae.
Fix and Depress ribs.
Stabilize pelvis during walking.
Increase intra-abdominal pressure.

Front 11

Action (3) of External Oblique

Back 11

Aids Rectus Abdominus.
Trunk Rotation.
Lateral Flexion.

Front 12

Action (3) of Internal Oblique

Back 12

Aids Rectus Abdominus.
Trunk Rotateion.
Lateral Flexion.

Front 13

Action of Transverse Abdominus

Back 13

Compress Abdominal contents

Front 14

Action (2) of Splenius Capitis

Back 14

Extend/Hyperextend head.
When activated on one side, head is rotated and bent laterall to same side.

Front 15

Action of Splenius Cervicis

Back 15

Works in conjunction with splenius capitis.

Front 16

Action of Pectoralis Minor

Back 16

Draw Scapula forward

Front 17

Action of Serratus Anterior

Back 17

Protract Scapula

Front 18

Action of Subclavius

Back 18

Stabilizes Scapula

Front 19

Action of Trapezius

Back 19

Stabilizes Scapula

Front 20

Action of Levator Scapulae

Back 20

Elevation of Scapula

Front 21

Action of Rhomboids

Back 21

Retract Scapula

Front 22

Origin and Insertion of Pectoralis Minor

Back 22

Origin: Anterior surface of ribs 3-5.

Insertion: Coracoid process of scapula.

Front 23

Origin and Insertion of Serratus Anterior

Back 23

Origin: Ribs 1-8

Insertion: Anterior surface of vertebral border of Scapula

Front 24

Origin and Insertion of Subclavius

Back 24

Origin: Costal cartilage of Rib 1.

Insertion: Inferior surface of Clavicle.

Front 25

Origin and Insertion of Trapezius

Back 25

Origin: Occipital Bone.

Insertion: Continuous insertion along Acromion and spine of Scapula.

Front 26

Origin and Insertion of Levator Scapulae

Back 26

Origin: Transverse process of C1-C4.

Insertion: Medial Border of Scapula.

Front 27

Origin and Insertion of Rhomboids

Back 27

Origin: Spinus process of C4-C7 (major) and T2-T5 (minor).

Insertion: Medial border of Scapula.

Front 28

Origin (3) and Insertion (2) of Iliocostalis

Back 28

Origin: Iliac crests, inferior 6 Ribs, Ribs 3-6.

Insertion: Angles of Ribs, C6-C4.

Front 29

Origin and Insertion (2) of Longissimus

Back 29

Origin: Transverse process of lumbar through cervical vertebrae.

Insertion: Transverse process of thoracic or cervical vertebrae, Mastoid process of Temporal bone.

Front 30

Origin (2) and Insertion (2) of Spinalis

Back 30

Origin: Upper Lumbar Vertebrae, Lower Thoracic Vertebrae.

Insertion: Upper Thoracic Vertebrae, Cervical Vertebrae.

Front 31

Origin and Insertion (2) of Semispinalis

Back 31

Origin: Transverse process of C7-T12.

Insertion: Occipital bone, Spinous processes of cervical and T1-T4.

Front 32

Origin (2) and Insertion (2) of Multifidis

Back 32

Origin: Transverse Process of Lumbar Vertebrae and Lower Thoracic Vertebrae.

Insertion: Spinous Process of Lumbar and Thoracic Vertebrae.

Front 33

Origin (2) and Insertion (2) of Quadratus Lumborum

Back 33

Origin: Iliac Crest, Lumbar Fascia.

Insertion: Transverse Process of upper Lumbar and 12th Rib.

Front 34

Origin (2) and Insertion (2) of Sternocleidomastoid

Back 34

Origin: Manubrium, Medial Clavicle.

Insertion: Mastoid Process of Temporal Bone, Nuchal Line of Occipital Bone.

Front 35

Origin and Insertion of Scalenes

Back 35

Origin: Transverse Process of Cervical Vertebrae.

Insertion: Anterolaterally on first 2 Ribs.

Front 36

Origin and Insertion (2) of Recus Abdominus

Back 36

Origin: Pubic Crest and Symphysis.

Insertion: Xiphoid process, Coastal Cartilages of Ribs 5-7.

Front 37

Origin and Insertion (4) of External Oblique

Back 37

Origin: Outer surface of lower 8 Ribs.

Insertion: Anterior Aponeurosis into Linea Alba, Some into Pubic Crest, Tubercle, Iliac Crest.

Front 38

Origin (3) and Insertion (3) of Internal Oblique

Back 38

Origin: Lumbar Fascia, Iliac Crest, Inguinal Ligament.

Insertion: Linea Alba, Pubic Crest, Last 3-4 Ribs.

Front 39

Origin (4) and Insertion (2) of Transverse Abdominus

Back 39

Origin: Inguinal Ligament, Lumbar Fascia, Cartilages of last 6 Ribs, Iliac Crest.

Insertion: Linea Alba, Pubic Crest.

Front 40

Origin and Insertion (2) of Splenius Capitis

Back 40

Origin: Spinous Process of C7-T6.

Insertion: Mastoid Process, Occipital Bone.

Front 41

Origin and Insertion of Splenius Cervicis

Back 41

Origin: Spinous Process of C7-T6.

Insertion: Transverse Process of C2-C4.