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Question 1

INNERVATION:

Latissimus Dorsi

Answer 1

Thoracodorsal nerve

Question 2

ORIGIN:

Rhomboid Major

Answer 2

SP’s of T2-T5

Question 3

INNERVATION:

Rhomboid Major

Answer 3

Dorsal Scapular Nerve

Question 4

FUNCTIONS: Latissimus Dorsi

Answer 4

Extends, adducts, and medially rotates humerus

Question 5

ORIGIN: Levator scapulae

Answer 5

Posterior tubercules of TP’s of C1-C4

Question 6

ORIGIN:

Trapezius

Answer 6

Superior nuchal line

External Occipital Protuberance (EOP)

Nuchal ligament

SP’s of C7-T12

Question 7

INNERVATION:

Levator scapulae

Answer 7

Ventral rami of C3-C4

Dorsal Scapular Nerve

Question 8

INNERVATION:

Rhomboid Minor

Answer 8

Dorsal Scapular Nerve

Question 9

ORIGIN:

Erector Spinae

Answer 9

Posterior sacrum
iliac crest
sacrospinatus ligament
supraspinatus ligament
SP’s of the lower lumbar region

Question 10

ORIGIN:

Rhomboid Minor

Answer 10

Ligamentum nuchae

Spines of C7 & T1 vertebrae

Question 11

FUNCTION:

Trapezius

Answer 11

Elevates, retracts, and rotates scapula

Lower fibers depress scapula

Question 12

ORIGIN:

Serratus Anterior

Answer 12

Anterolateral aspects of upper eight ribs

Question 13

INNERVATION:

Serratus Anterior

Answer 13

Long Thoracic Nerve

(which is actually _superficial_ to the serratus anterior)

Question 14

FUNCTION:

Rhomboid Minor*

Answer 14

*Fixes scapula to thoracic wall

Retracts and rotates scapula to depress glenoid cavity

Question 15

INSERTION:

Levator scapulae

Answer 15

Medial border of scapula from superior angle to spine

Question 16

FUNCTIONS:

Erector Spinae

Answer 16

• Bilateral contraction
  
  • extension of spine & head
• Unilateral contraction
  
  • ipsilateral bending & ipsilateral rotation of the spine

Question 17

FUNCTION:

Levator scapulae

Answer 17

Elevates scapula medially

Rotates glenoid fossa inferiorly

Question 18

INSERTION:

Trapezius

Answer 18

Lateral third of clavicle

Acromion

Spine of scapula

Question 19

INSERTION:

Serratus Anterior

Answer 19

Medial border of scapula

Question 20

INSERTION:
Rhomboid Minor

Answer 20

Medial border of scapula, AT spine of scapula

Question 21

INNERVATION:

Erector Spinae

Answer 21

Dorsal rami of each region

Question 22

FUNCTION:

Rhomboid Major

Answer 22

Fixes scapula to thoracic wall

Retracts & rotates scapula to depress glenoid cavity

Question 23

INNERVATION:

Trapezius

Answer 23

Spinal Accessory Nerve (CN XI)

Question 24

INSERTION:

Rhomboid Major

Answer 24

Medial border of scapula, BELOW base of spine of scapula

Question 25

ORIGIN:

Latissimus Dorsi

Answer 25

SP’s of T7-L5

Thoracolumbar fascia

Iliac crest

Last three ribs

Question 26

INSERTION:

Latissimus Dorsi

Answer 26

Humerus (intertubercular sulcus)

Question 27

FUNCTION:

Serratus anterior

Answer 27

Scapular abduction

Upward rotation of lateral angle