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SHB > Quiz 1 > Flashcards

Quiz 1 Flashcards

1
Q

Trapezius

A

Accessory nerve (cranial nerve XI)

superficial back

Elevates, retracts, and rotates scapula (abduction above 90-180); lower fibers depress scapula

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2
Q

Latissimus dorsi

A

Thoracodorsal nerve

superficial back and shoulder

extends, adducts, and medially rotates humerus

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3
Q

Rhomboid major

A

dorsal scapular nerve

superficial back

fixes scapula to thoracic wall and retracts and rotates it to depress glenoid cavity

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4
Q

Rhomboid minor

A

dorsal scapular nerve

superficial back

fixes scapula to thoracic wall and retracts and rotates it to depress glenoid cavity

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5
Q

Levator scapulae

A

ventral rami C3-C4 and dorsal scapular nerve

superficial back

elevates scapula medially, inferiorly rotates glenoid cavity

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6
Q

Rectus capitis posterior major

A

Suboccipital nerve
Dorsal ramus of C1 (suboccipital)

Origin: spinus process of axis C2

Extends and rotates atlanto-occipital joint

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7
Q

Rectus capitis posterior minor

A

Suboccipital nerve
Dorsal ramus of C1

suboccipital

Extends and rotates atlanto-occipital joint

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8
Q

Serratus posterior superior

A

ventral rami of lower thoracic nerves

depresses elevates ribs
Assists forced inspiration

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9
Q

Serratus posterior inferior

A

ventral rami of upper thoracic nerves

depresses ribs
Assists forced expiration

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10
Q

Serratus anterior

A

long thoracic nerve and lateral thoracic artery

Laterally rotates and protracts scapula forward (abduction above 90-180)

shoulder

Boxer’s muscle

if LTN cut = angel wing (the medial border of the scapula moves laterally and posteriorly away from the thoracic wall)

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11
Q

Erector spinae

A

posterior primary rami

dorsal rami

intermediate layer of true back

Lateral flexion of spine

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12
Q

Splenius capitis

A

posterior primary rami

dorsal rami

superficial layer of true back

Extends and rotates cervical spine

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13
Q

Semispinalis capitis

A

greater occipital nerve C2

dorsal rami

deep layer of true back

Extends head and spine and lateral flexes spine

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14
Q

Obliquuis capitis superior

A

suboccipital nerve

Dorsal ramus C1

Suboccipital

Lateral flexes atlanto-occipital joint

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15
Q

Obliquuis capitis inferior

A

suboccipital nerve

Dorsal ramus C1

Suboccipital

Rotates atlanto-axial joint

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16
Q

Teres minor

A

axillary nerve

shoulder; rotator cuff

laterally rotates arm and stabilizes shoulder joint

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17
Q

Supraspinatus

A

Suprascapular nerve

shoulder; rotator cuff

abduction of arm (initiation to 15 degrees)

most frequently torn

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18
Q

Subscapularis

A

Upper and lower subscapular nerves

shoulder; rotator cuff

Medially rotates arm and stabilizes shoulder joint

Insertion:
Lesser tuberosity of humerus, upper medial lip of bicipital groove, capsule of shoulder joint

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19
Q

Teres major

A

Lower subscapular nerve

Shoulder- insert in bicipital groove of humerus

Medially rotates and adducts arm. Stabilizes shoulder joint

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20
Q

Subclavius

A

Nerve to subclavius

shoulder

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21
Q

Deltoid

A

axillary nerve (C5, C6)

shoulder

abducts humerus to 90 degrees
Abducts arm, anterior fibers flex and medial rotate, posterior fibers extend and lateral rotate

insert in deltoid tuberosity

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22
Q

Pectoralis major

A

medial and lateral pectoral nerves

pectoral region/axilla

Clavicular head:flexes and adducts arm. Sternal head: adducts and medially rotates arm . Accessory for inspiration

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23
Q

Pectoralis minor

A

medial pectoral nerve

pectoral region/axilla

Elevates ribs if scapula fixed, protracts scapula (assists serratus anterior)

Insert: medial and upper surface of coracoid process of scapula

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24
Q

Sternocleidomastoid

A

spinal root of accessary Nerve XI

tilts head to side; laterally flexes neck and rotates head toward opposite side

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25
Q

Platysma

A

cervical branch of facial nerve

Depresses and wrinkles skin of lower face and mouth. Aids forced depression of mandible

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26
Q

Omohyoid (inferior belly)

A

Ansa cervicalis nerve (C1,2,3)

Depresses hyoid bone and hence larynx

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27
Q

Anterior scalene

A

Anterior primary rami of C5, 6

brachial plexuses

elevate 1st rib / inspiration

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28
Q

Middle scalene

A

Anterior primary rami of C3-8

brachial plexuses

elevate 1st rib/ inspiration

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29
Q

Posterior scalene

A

Anterior primary rami of C6-8

brachial plexuses

elevate 2nd rib / inspiration

30
Q

Long head of triceps brachii

A

radial nerve

Extends elbow. Long head stabilizes shoulder joint. medial head retracts capsule of elbow joint on extension

31
Q

Infraspinatus

A

suprascapular nerve (C5, C6)

laterally rotates arm and stabilizes shoulder joint

32
Q

Interspinalis

A

posterior primary rami

Dorsal rami

Extension of spine

33
Q

Intertransversarii

A

posterior primary rami

Dorsal rami

laterally flexes spine

34
Q

Levatores costarum

A

posterior primary rami

Dorsal rami

elevate ribs

35
Q

Transversospinalis

A

posterior primary rami

Dorsal rami

extends spine

(includes semispinalis)

36
Q

Splenius cervicis

A

posterior primary rami

dorsal rami C5 C6

extends and rotates cervica spine

37
Q

Biceps brachii

A

Musculocutaneous nerve

arm, anterior

Supinates forearm, flexes elbow, weakly flexes shoulder

38
Q

Brachialis

A

Musculocutaneous nerve

arm, anterior

Flexes elbow

39
Q

Coracobrachialis

A

Musculocutaneous nerve

Arm, anterior

Flexes and weakly adducts arm

40
Q

Anconeus

A

Radial nerve

arm posterior

Weak extensor of elbow. Moves (abducts) ulna in pronation

41
Q

Triceps brachii

A

radial nerve

arm posterior

Extends elbow. Long head stabilizes shoulder joint. medial head retracts capsule of elbow joint on extension

42
Q

Flexor carpi radialis

A

median nerve

forearm; anterior

Flexes and abducts wrist

43
Q

Flexor carpi ulnaris

A

ulnar nerve

forearm; anterior

Flexes and adducts wrist. Fixes pisiform during action of hypothenar muscles

44
Q

Flexor digitorum profundus

A

ulnar nerve= Medial part
median nerve = lateral part

forearm; anterior

Flexes distal interphalangeal joints, then secondarily flexes proximal interphalangeal and metacarpophalangeal joints and wrist

45
Q

Flexor digitorum superficialis

A

median nerve

forearm; anterior

Flexes proximal interphalangeal joints and secondarily metacarpophalangeal joints and wrist

Superficial splits sides

46
Q

Flexor pollicis longus

A

median nerve (anterior interosseous)

forearm; anteiror

Flexes distal phalanx of thumb

47
Q

Palmaris longus

A

median nerve (anterior interosseous)

forearm; anterior

Flexes wrist and tenses palmar aponeurosis

48
Q

pronator teres

A

median nerve

forearm anterior

Pronates forearm and flexes elbow

from medial epicondyle

49
Q

abductor pollicis longus

A

radial nerve (posterior interosseous)

forearm; posterior

Abducts and extends thumb at carpometacarpal joint

50
Q

Brachioradialis

A

radial nerve

Forearm posterior

Flexes arm at elbow and brings forearm into midprone position

51
Q

Extensor carpi radialis brevis

A

radial nerve (deep branch)

forearm posterior

Extends and abducts hand at wrist

52
Q

Extensor carpi radialis longus

A

radial nerve

forearm posterior

Extends and abducts hand at wrist

53
Q

Extensor carpi ulnaris

A

radial nerve (posterior interosseous)

forearm posterior

Extends and adducts hand at wrist

54
Q

Extensor digiti minimi

A

radial nerve (posterior interosseous)

forearm posterior

Extends all joints of little finger

55
Q

Extensor digitorum

A

radial nerve (posterior interosseous)

forearm posterior

Extends all joints of fingers

56
Q

Extensor indicis

A

radial nerve (posterior interosseous)

forearm posterior

Extends all joints of index finger

57
Q

Extensor pollicis brevis

A

radial nerve (posterior interosseous)

forearm posterior

Extends metacarpophalangeal joint of thumb

58
Q

Extensor pollicis longus

A

Radial nerve (posterior interosseous)

forearm posterior

Extends interphalangeal and metacarpophalangeal joints of thumb

59
Q

Supinator

A

radial nerve (deep branch)

forearm posterior

Supinates forearm. Only acts alone when elbow extended

60
Q

Adductor pollicis

A

Ulnar nerve (deep branch)

hand adductor

Adducts carpometacarpal joint of thumb

61
Q

Abductor digiti minimi

A

ulnar nerve (deep branch)

hand hypothenar

Abducts little finger at metacarpophalangeal joint

62
Q

Flexor digiti minimi brevis

A

ulnar nerve (deep branch)

hand hypothenar

Flexes metacarpophalangeal joint of little finger

63
Q

Opponens digiti minimi

A

ulnar nerve (deep branch)

hand hypothenar

Opposes (flexes and laterally rotates) carpometacarpal and metacarpophalangeal joints of little finger

64
Q

Dorsal interosseous muscles

A

Ulnar nerve (deep branch)

hand interossei

Abduct from axis of middle finger. Flex metacarpophalangeal joint while extending interphalangeal joints

65
Q

Palmar interosseous muscles

A

ulnar nerve (deep branch)

hand interossei

Adduct to axis of middle finger. Flex metacarpophalangeal joint while extending interphalangeal joints

66
Q

Lumbrical, first and second

A

Median never (digital branches)

hand medial

Flex metacarpophalangeal joints and extend interphalangeal joints of fingers

67
Q

Lumbrical third and fourth

A

ulnar nerve (deep branch)

hand medial

Flex metacarpophalangeal joints and extend interphalangeal joints of fingers

68
Q

Palmaris brevis

A

superficial palmar branch of ulnar nerve

hand superficial

Steadies and corrugates skin of palm to help with grip

69
Q

Abductor pollicis brevis

A

median nerve (recurrent branch)

hand thenar

Abducts thumb at metacarpophalangeal & carpometacarpal joints

70
Q

Flexor pollicis brevis

A

median nerve (recurrent branch)

hand thenar

Flexes metacarpophalangeal joint of thumb

71
Q

Opponens pollicis

A

median nerve (recurrent branch)

hand thenar

Opposes (medially rotates and flexes ) carpometacarpal and metacarpophalangeal joints of thumb

72
Q

Pronator quadratus

A

median nerve
Anterior interosseous nerve

Pronates forearm and maintains ulna and radius opposed

SHB (22 decks)

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