Scapular Muscles Oian For Kinesiology I

Front 1

O: Posterior occipital bone; spinous processes of C1-7 (nuchul ligament).
I: Posterior lateral 1/3 of clavicle and acromion process.
A: Scapular elevation and upward rotation.
N: Cranial nerve XI Spinal accessory nerve (motor) and anterior primary rami of C3-4 (sensory).

Back 1

OIAN of Upper Trapezius

Front 2

O: Posterior occipital bone; spinous processes of C1-7 (nuchul ligament).

Back 2

Origin of Upper Trapezius

Front 3

I: Posterior lateral 1/3 of clavicle and acromion process.

Back 3

Insertion of Upper Trapezius

Front 4

A: Scapular elevation and upward rotation.

Back 4

Action(s) of Upper Trapezius

Front 5

N: Cranial nerve XI Spinal accessory nerve (motor) and anterior primary rami of C3-4 (sensory).

Back 5

Innervation of Upper, Middle, and Lower Trapezius

Front 6

O: Spinous processes T1-5.
I: Scapular spine
A: Scapular retraction
N: Cranial nerve XI spinal accessory nerve (motor) and anterior primary rami of C3-4 (sensory).

Back 6

OIAN of Middle Trapezius

Front 7

O: Spinous processes T1-5.

Back 7

Origin of Middle Trapezius

Front 8

I: Scapular spine

Back 8

Insertion of Middle Trapezius

Front 9

A: Scapular retraction

Back 9

Action(s) of Middle Trapezius

Front 10

O: Spinous processes T6-12.
I: Medial 1/3 of scapular spine.
A: Scapular depression and upward rotation.
N: Cranial nerve XI spinal accessory nerve (motor) and anterior primary rami of C3-4 (sensory).

Back 10

OIAN of Lower Trapezius

Front 11

O: Spinous processes T6-12.

Back 11

Origin of Lower Trapezius

Front 12

I: Medial 1/3 of scapular spine.

Back 12

Insertion of Lower Trapezius

Front 13

A: Scapular depression and upward rotation.

Back 13

Action(s) of Lower Trapezius

Front 14

O: Transverse processes of C1-4.
I: Vertebral border of scapula between spine and superior angle.
A: Scapular elevation and downward rotation.
N: Dorsal scapular nerve (C5) and anterior primary rami of C3-4.

Back 14

OIAN of Levator Scapulae

Front 15

O: Transverse processes of C1-4.

Back 15

Origin of Levator Scapulae

Front 16

I: Vertebral border of scapula between spine and superior angle.

Back 16

Insertion of Levator Scapulae

Front 17

A: Scapular elevation and downward rotation.

Back 17

Action(s) of Levator Scapulae

Front 18

N: Dorsal scapular nerve (C5) and anterior primary rami of C3-4.

Back 18

Innervation of Levator Scapulae

Front 19

O: Spinous processes of C7-T1.
I: Vertebral border of scapula at the root of the spine.
A: Scapular retraction, elevation, and downward rotation.
N: Dorsal scapular nerve (C4-5)

Back 19

OIAN of Rhomboid Minor

Front 20

O: Spinous processes of C7-T1.

Back 20

Origin of Rhomboid Minor

Front 21

I: Vertebral border of scapula at the root of the spine.

Back 21

Insertion of Rhomboid Minor

Front 22

A: Scapular retraction, elevation, and downward rotation.

Back 22

Action(s) of Rhomboid Major and Minor

Front 23

N: Dorsal scapular nerve (C4-5)

Back 23

Innervation of Rhomboid Major and Minor

Front 24

O: Spinous processes of T2-5.
I: Vertebral border of scapula inferior to spine.
A: Scapular retraction, elevation, and downward rotation.
N: Dorsal scapular nerve (C4-5).

Back 24

OIAN of Rhomboid Major

Front 25

O: Spinous processes of T2-5.

Back 25

Origin of Rhomboid Major

Front 26

I: Vertebral border of scapula inferior to spine.

Back 26

Insertion of Rhomboid Major

Front 27

O: Lateral surface of ribs 1-8.
I: Anterior surface of the vertebral border of scapula.
A: Scapular protraction and upward rotation.
N: Long thoracic nerve (C5-7).

Back 27

OIAN of Serratus Anterior

Front 28

O: Lateral surface of ribs 1-8.

Back 28

Origin of Serratus Anterior

Front 29

I: Anterior surface of the vertebral border of scapula.

Back 29

Insertion of Serratus Anterior

Front 30

A: Scapular protraction and upward rotation.

Back 30

Action(s) of Serratus Anterior

Front 31

N: Long thoracic nerve (C5-7).

Back 31

Innervation of Serratus Anterior

Front 32

O: Anterior surface of ribs 3-5.
I: Coracoid process of scapula
A: Scapular depression, protraction, and downward rotation.
N: Medial pectoral nerve (C8-T1)*

Back 32

OIAN of Pectoralis Minor

Front 33

O: Anterior surface of ribs 3-5.

Back 33

Origin of Pectoralis Minor

Front 34

I: Coracoid process of scapula

Back 34

Insertion of Pectoralis Minor

Front 35

A: Scapular depression, protraction, and downward rotation.

Back 35

Action(s) of Pectoralis Minor

Front 36

N: Medial pectoral nerve (C8-T1)*

Back 36

Innervation of Pectoralis Minor

Front 37

O: Superior surface of first rib at the junction of costal cartilage.
I: Inferior surface of clavicle.
A: Stabilizes sternoclavicular joint.
N: Nerve to subclavius (C5-6).

Back 37

OIAN of Subclavius

Front 38

O: Superior surface of first rib at the junction of costal cartilage.

Back 38

Origin of Subclavius

Front 39

I: Inferior surface of clavicle.

Back 39

Insertion of Subclavius

Front 40

A: Stabilizes sternoclavicular joint.

Back 40

Action(s) of Subclavius

Front 41

N: Nerve to subclavius (C5-6).

Back 41

Innervation of Subclavius