Shoulder Muscles Flashcards Preview

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Flashcards in Shoulder Muscles Deck (28)
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1

Pectoralis minor origin?

anterior surface of ribs 3-5 (or 2-4)

2

Serratus anterior origin?

by series of muscle slips from ribs 1-9

3

Subclavius origin?

costal cartilage of rib 1

4

Trapezius origin?

occipital bone, ligamentum nuchae, spines of C7 - T12

5

Levator scapulae origin?

transverse processes of C1-C4

6

Rhomboid minor origin?

spinous processes of C7 & T1

7

Rhomboid major origin?

spinous processes of T2-T5

8

Pectoralis minor insertion?

coracoid process of scapula

9

Serratus anterior insertion?

anterior surface of vertebral border of scapula

10

Subclavius insertion?

groove on inferior surface of clavicle

11

Trapezius insertion?

spine & acromion of scapula, lateral 3rd of clavicle

12

Levator scapulae insertion?

medial border of scapula, superior to spine

13

Rhomboid minor insertion?

medial border of scapula

14

Rhomboid major insertion?

medial border of scapula

15

Pectoralis minor action?

draws scapula forward & downward (ribs fixed)
draws rib cage superiorly (scaupla fixed)

16

Serratus anterior action?

rotates scapula so it's inferior angle moves laterally and upward

17

Subclavius action?

Helps stabilize and depress pectoral girdle

18

Trapezius action?

Stabilizes, raises, retracts, and rotates scapula

19

Levator scapulae action?

elevates & adducts scapula

20

Rhomboid minor action?

stablize scapula

21

Rhomboid major action?

stablize scapula

22

Pectoralis minor innervation?

Both pectoral nerves

23

Serratus anterior innervation?

Long thoracic nerve

24

Subclavius innervation?

Nerve to subclavius

25

Trapezius innervation?

Accesory nerve

26

Levator scapulae innervation?

Cervical spinal nerves & dorsal scapular nerve

27

Rhomboid minor innervation?

Dorsal scapular nerve

28

Rhomboid major innervation?

Dorsal scapular nerve