Superficial back muscles

Question 1

TRAPEZIUS medial

Answer 1

medial third of superior nuchal line; external occipital protuberance; nuchal ligament; spinous processes of C7-T12

Question 2

TRAPEZIUS lateral

Answer 2

lateral third of clavicle; acromion and spine of scapula

Question 3

TRAPEZIUS innervation

Answer 3

spinal accessory nerve (CN 11) for motor fibers while C3 and C4 spinal nerves are for pain and proprioception

Question 4

TRAPEZIUS vascularization

Answer 4

transverse cervical artery

Question 5

TRAPEZIUS function

Answer 5

descending part elevates, ascending part depresses, and middle part retracts scapula; descending and ascending parts act together to rotate glenoid cavity superiorly

Question 6

LATISSIMUS DORSI medial

Answer 6

spinous processes of inferior 6 thoracic vertebrae, thoracolumbar fascia, iliac crest, and inferior 3 or 4 ribs

Question 7

LATISSIMUS DORSI lateral

Answer 7

floor of intertubercular sulcus of humerus

Question 8

LATISSIMUS DORSI innervation

Answer 8

thoracodorsal nerve (C6, C7, C8)

Question 9

LATISSIMUS DORSI vascularization

Answer 9

thoracodorsal branch of the subscapular artery

Question 10

LATISSIMUS DORSI function

Answer 10

extends, adducts, and medially rotates humerus; raises body toward arms during climbing

Question 11

LEVATOR SCAPULAE medial

Answer 11

posterior tubercles of transverse processes of C1-C4

Question 12

LEVATOR SCAPULAE lateral

Answer 12

medial border of scapula superior to root of scapular spine

Question 13

LEVATOR SCAPULAE innervation

Answer 13

dorsal scapular (C4, C5) and cervical nerves (C3, C4)

Question 14

LEVATOR SCAPULAE vascularization

Answer 14

dorsal scapular artery

Question 15

LEVATOR SCAPULAE function

Answer 15

elevates scapula and rotates its glenoid cavity inferiorly by rotating scapula

Question 16

RHOMBOID MINOR medial

Answer 16

nuchal ligament; spinous processes of C7 and T1

Question 17

RHOMBOID MINOR lateral

Answer 17

smooth triangular area at medial end of scapular spine

Question 18

RHOMBOID MINOR innervation

Answer 18

dorsal scapular nerve (C4, C5)

Question 19

RHOMBOID MINOR vascularization

Answer 19

dorsal scapular artery

Question 20

RHOMBOID MINOR function

Answer 20

retract scapula and rotate its glenoid cavity inferiorly; fix scapula to thoracic wall

Question 21

RHOMBOID MAJOR medial

Answer 21

spinous processes of T2-T5

Question 22

RHOMBOID MAJOR lateral

Answer 22

medial border of scapula from level of spine to inferior angle

Question 23

RHOMBOID MAJOR innervation

Answer 23

dorsal scapular nerve (C4, C5)

Question 24

RHOMBOID MAJOR vascularization

Answer 24

dorsal scapular artery

Question 25

RHOMBOID MAJOR function

Answer 25

retract scapula and rotate its glenoid cavity inferiorly; fix scapula to thoracic wall