Exam I Muscle O, I, N, A Flashcards Preview

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Flashcards in Exam I Muscle O, I, N, A Deck (36)
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1

Pectoralis Major

O: medial 1/2 of clavicle, sternum, upper 6 costal cartilages
I: bicipital groove of humerus cartilage
N: medial and lateral pectoral nerves
A: flex, adduct, medially rotate humerus

2

Pectoralis Minor

O: ribs 3,4,5
I: coracoid process of scapula
N: medial pectoral nerve
A: depress scapula, protraction, medial rotation

3

Subclavius

O: first costal cartilage
I: inferior groove of clavicle
N: n. to subclavius
A: depress and stabilize clavicle

4

Serratus Anterior

O: upper 8 ribs
I: medial border of scapula
N: long thoracic
A: protract, laterally rotate scapula

5

Infraspinatus

O: infraspinatus fossa
I: greater tuberacle of humerus
N: suprascapular nerve
A: laterlly rotate humerus

6

Supraspinatus

O: supraspinatus fossa
I: greater tubercle of humerus
N: suprascapular nerve
A: abduct humerus

7

Teres Minor

O: lateral border of the scapula
I: greater tubercle
N: axillary nerve
A: laterally rotate humerus

8

Subscapularis

O: subscapular fossa
I: lesser tubercle
N: upper and lower subscapular nerve
A: medially rotate humerus

9

Deltoid

O:
posterior: spine of scapula
intermediate: acromion
anterior: lateral 1/3 of clavicle
I: deltoid tuberosity of humerus
N: axillary nerve
A: abduct, flex, extend, medially and laterally rotate humerus

10

Levator Scapulae

O: TP of C1-C4
I: medial border of scapula ,above spine
N: dorsal scapular nerve
A: elevate, retract, and medially rotate scapula

11

Rhomboid minor

O: SP of C7 and T1
I: medial border of scapula at spine
N: dorsal scapular nerve
A: elevate, retract, medially rotate scapula

12

Rhomboid major

O: SP T2-T5
I: medial border of scapula, below spine
N: dorsal scapular nerve
A: elevate, retract, medially rotate scapula

13

Teres Major

O: lateral border of scapula
I: intertubercular groove
N: lower subscapular nerve
A: adduct, medially rotate, extend humerus

14

Latissimus Dorsi

O: T6-L5, median crest of sacrum, illiac crest
I: intertubercular groove
A: adduct, extend, medially rotate humerus
N: thoracodorsal

15

Trapezius

O: external occipital protuberance, superior nuchal line, nuchal ligament, C7-T12
I: spine of scapula, acromion, lateral 1/3 of clavicle
N: Accessory Nerve
A: elevation, depression, retraction, lateral rotation

16

Pronator Teres

O: CFO
I: radius
N: median nerve
A: pronates forearm

17

Palmaris Longus

O: CFO
I: palmar aponeurosis
N: median nerve

18

Flexor Carpi Radialis

O: CFO
I: MC 2,3
N: median nerve
A: flex, radially deviates wrist

19

Flexor Carpi Ulnaris

O: CFO
I: MC 5
N: ulnar nerve
A: flex and ulnar deviate wrist

pisiform bone develops within tendon (sesamoid bone)

20

Flexor Digitorum superficialis

O: CFO, radius and ulna
I: middle phalanges of 2-5
N: median nerve
A: flex fingers

21

Flexor digitorum profundus

O: radius, ulna
I: distal phalanges
N: median and ulnar nerve

22

Flexor pollicis longus

O: radius, ulna
I: distal phalanx of thumb
N: median nerve

23

Pronator Quadratus

O & I: radius to ulna
N: median nerve
A: pronates forearm

24

Brachioradialis

O: CEO
I: radius
N: radial nerve
A: flex elbow, maintain 1/2 pronated position

25

Extensor carpi radialis longus and brevis

O: CEO
I: MC 2,3
N: radial nerve
A: extend and radial deviate wrist

26

Extensor digitorum and extensor digiti minimi

O: CEO
I: extensor expansions over middle and distal phalanges
A: extends fingers
N: radial nerve

27

Extensor carpi ulnaris

O: CEO
I: MC 5
N: radial nerve
A: extend wrist and ulnar deviate

28

Supinator

O: supinator crst of ulna, lateral epicondyle of humerus, radial collateral and annular ligaments
I: lateral surface of proximal radius
N: radial nerve

29

Abductor pollicis longus

O: posterior surface of middle 1/3 of ulna, radius, and interosseus membrane
I: base of MC 1
N: radial nerve

30

Extensor pollicis brevis

O: posterior surface of radius and interosseous membrane
I: base of proximal phalanx of thumb
N: radial nerve