OIAN of Scapula Muscles

Question 1

Pectoralis Minor (O:)

Answer 1

anterior surface of ribs 3-5

Question 2

Pectoralis Minor (I:)

Answer 2

coracoid process

Question 3

Pectoralis Minor (A:)

Answer 3

scapular depression, protraction, downward rotation

Question 4

Pectoralis Minor (N:)

Answer 4

medial pectoral nerve (C8-T1)

Question 5

Serratus Anterior (O:)

Answer 5

lateral surface of upper 8 ribs

Question 6

Serratus Anterior (I:)

Answer 6

vertebral border of scapula (anterior surface)

Question 7

Serratus Anterior (A:)

Answer 7

scapular protraction+,
upward rotation

Question 8

Serratus Anterior (N:)

Answer 8

long thoracic nerve (C5-C7)

Question 9

Rhomboids (O:)

Answer 9

spinous process C7-T5

Question 10

Rhomboids (I:)

Answer 10

vertebral border of scapula (scapula spine to inferior angle)

Question 11

Rhomboids (A:)

Answer 11

scapular retraction,
elevation,
downward rotation

Question 12

Rhomboids (N:)

Answer 12

dorsal scapular nerve (C5)

Question 13

Upper Trapezius (O:)

Answer 13

external occipital protuberance,
superior nuchal line,
spinous process of cervical vertebrae

Question 14

Upper Trapezius (I:)

Answer 14

lateral clavicle
acromion process

Question 15

Upper Trapezius (A:)

Answer 15

scapular elevation+
upward rotation,
retraction
bilat: cervical extension
unilat: lateral flexion & rotation

Question 16

Upper Trapezius (N:)

Answer 16

spinal accessory (CN 11);
C3-C4 sensory input

Question 17

Middle Trapezius (O:)

Answer 17

spinous process C7-T3

Question 18

Middle Trapezius (I:)

Answer 18

medial acromion & scapular spine

Question 19

Middle Trapezius (A:)

Answer 19

scapular retraction+

Question 20

Middle Trapezius (N:)

Answer 20

spinal accessory nerve (CN 11);
C3-C4 sensory input

Question 21

Lower Trapezius (O:)

Answer 21

spinous process T4-T12

Question 22

Lower Trapezius ( I:)

Answer 22

base of scapular spine

Question 23

Lower Trapezius (A:)

Answer 23

scapular depression+
upward rotation*

Question 24

Lower Trapezius (N:)

Answer 24

spinal accessory nerve (CN 11);
C3-C4 sensory input

Question 25

Levator Scapulae (O:)

Answer 25

transverse process of C1-C4

Question 26

Levator Scapulae (I:)

Answer 26

vertebral border of scapula between superior angle & scapular spine

Question 27

Levator Scapulae (A:)

Answer 27

scapular elevation
downward rotation
cervical extension & lateral flexion

Question 28

Levator Scapulae (N:)

Answer 28

dorsal scapular nerve, C5 (and some C3-C4)