Function of Muscle

Question 1

Trapezius (upper fibers)

Answer 1

Rotate head away, elevate scapula, lateral flexion

Question 2

Trapezius (middle fibers)

Answer 2

Retract scapula

Question 3

Trapezius (lower fibers)

Answer 3

retract and depress scapula

Question 4

Rhomboid Major

Answer 4

retract and rotate scapula

Question 5

Rhomboid minor

Answer 5

Retract and Rotate scapula

Question 6

latissimus dorsi

Answer 6

extend, adduct, medial rotation of humerus

Question 7

serratus posterior superior

Answer 7

elevate upper ribs

Question 8

serratus posterior inferior

Answer 8

depress lower ribs

Question 9

levator scapulae

Answer 9

elevate scapula, rotate neck

Question 10

iliocostalis

Answer 10

lateral flexion and rotation of spine

Question 11

longissimus

Answer 11

extension and lateral flexion of spine

Question 12

spinalis

Answer 12

extension and rotation of spine and head

Question 13

semispinalis cervicis

Answer 13

extend thoracic and cervical spine

Question 14

semispinalis capitis

Answer 14

extend thoracic and cervical spine

Question 15

splenius capitis

Answer 15

extend neck

Question 16

splenius cervicus

Answer 16

extend neck

Question 17

obliqus capitis inferior

Answer 17

extension (“yes”), flexion (“no”)

Question 18

obliqus capitis superior

Answer 18

extension (“yes”), flexion (“no”)

Question 19

rectus posterior capitis major

Answer 19

extension (“yes”), flexion (“no”)

Question 20

rectus posterior capitis minor

Answer 20

extension (“yes”), flexion (“no”)

Question 21

transversospinalis

Answer 21

all: stable column, one: rotation, lateral flexion

Question 22

levator costarum

Answer 22

postural

Question 23

interspinales

Answer 23

postural