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MSA > review concepts for exam 2 > Flashcards

review concepts for exam 2 Flashcards

upper extremity muscles and attachments/actions/innervations

1
Q

what shoulder muscles are responsible for abduction

A

supraspinatus, deltoid, trapezius, serratus anterior

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2
Q

what shoulder muscles are required for medial rotation

A

subscapularis, teres major

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3
Q

what shoulder muscles are required for flexion

A

anterior deltoid, coracobrachialis, pec major

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4
Q

what shoulder muscles are responsible for lateral rotation

A

teres minor, infraspinatus,

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5
Q

what are the four rotator cuff muscles

A

subscapularis, infraspinatus, supraspinatus, teres minor

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6
Q

what rotator cuff muscles originate onto the shoulder

A

supraspinatus: medial 2/3 of supraspinatus fossa
infraspinatus: medial 2/3 of infraspinatus fossa
teres minor: shoulder joint capsule

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7
Q

what rotator cuff muscles insert on the shoulder

A

none, all humerus

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8
Q

what makes up the snuff box

A

extensor pollicis longus, extensor pollicis brevis, abductor pollicis longus

NOT ABDUSTCOR POLLOCIS BREVIS OR OPPONENS POLLICIS

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9
Q

what concentric motion

A

being stable as ur contracting and shortening

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10
Q

what eccentric motion

A

being stable as ur lengthening and expanding

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11
Q

what attaches proximal to the spine of the scapula, what is that part of the scapula called

A

supraspinatus, supraspinatus fossa

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12
Q

what are the superficial and intermediate forearm muscles

A
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13
Q

what are the deep forearm muscles

A
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14
Q

what muscles fully cross the wrist

A
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15
Q

what muscles are in the flexor thumb, laterally to medially

A
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16
Q

what muscle attaches to the distal row of carpals

A
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17
Q

what muscles attach to the scaphoid

A
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18
Q

what muscles attach to the hamate

A
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19
Q

what muscles attach to the pisiform

A
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20
Q

what muscles attach to the trapezium

A
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21
Q

what muscles are included in the hypothenar eminence

A
22
Q

what muscles are included in the thenar eminence

A
23
Q

what muscle stabilizes the scapula against the thoracic wall

A

serratus anterior

24
Q

what muscle can laterally rotate the shoulder

A

teres minor

25
Q

what muscle originates at the inferior lateral border of the scapula and inferior angle

A

teres major

26
Q

true or false: teres minor can internally rotate the shoulder

A

false

27
Q

whats the insertion of the levator scapula

A

medial border of scapula, superior portion

28
Q

what actions does the upper trapezius cause at the scapula

A

upward rotation, elevation

29
Q

what elbow flexor is a two joint muscle

A

brachialis: ulnar and humoral head

30
Q

what muscles downwardly rotate the scapula

A

levator scapulae and rhomboids

31
Q

what forearm muscle doesnt cross the wrist

A

pronator teres

32
Q

what keeps the flexor tendons in place and forms a carpal tunnel boundary

A

flexor retinaculum

33
Q

how many metacarpals does the tumb have

A

2

34
Q

whats the innervation of the deltoid

A

axillary

35
Q

whats the innervation of the supraspinatus

A

suprascapular

36
Q

whats the innervation of the subscapularis

A

dorsal subscapular nerves

37
Q

whats the innervation of the extensor carpi radialis longus

A

radial

38
Q

whats the innervation of the flexor carpi ulnaris

A

ulnar

39
Q

whats the innervation of the biceps brachii

A

musculocutaneous

40
Q

whats the innervation of the triceps

A

radial

41
Q

whats the innervation of the supinator

A

radial

42
Q

whats the innervation of the pronator teres

A

median

43
Q

whats the innervation of the brachialis

A

musculocutaeous

44
Q

whats the innervation of the 3rd and 4th lumbricals (digits 4 and 5)

A

ulnar

45
Q

whats the innervation of the adductor pollicis

A

ulnar

46
Q

whats the innervation of the abductor digiti minimi

A

ulnar

47
Q

whats the innervation of the abductor pollicis brevis

A

median

48
Q

whats the innervation of the extensor pollicis longus

A

radial

49
Q

what ligament stabilized the radius and ulna during supination

A

annular ligament

50
Q
A

MSA (13 decks)

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