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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
Platysma
cervical branch of facial nerve Depresses and wrinkles skin of lower face and mouth. Aids forced depression of mandible
26
Omohyoid (inferior belly)
Ansa cervicalis nerve (C1,2,3) Depresses hyoid bone and hence larynx
27
Anterior scalene
Anterior primary rami of C5, 6 brachial plexuses elevate 1st rib / inspiration
28
Middle scalene
Anterior primary rami of C3-8 brachial plexuses elevate 1st rib/ inspiration
29
Posterior scalene
Anterior primary rami of C6-8 brachial plexuses elevate 2nd rib / inspiration
30
Long head of triceps brachii
radial nerve Extends elbow. Long head stabilizes shoulder joint. medial head retracts capsule of elbow joint on extension
31
Infraspinatus
suprascapular nerve (C5, C6) laterally rotates arm and stabilizes shoulder joint
32
Interspinalis
posterior primary rami Dorsal rami Extension of spine
33
Intertransversarii
posterior primary rami Dorsal rami laterally flexes spine
34
Levatores costarum
posterior primary rami Dorsal rami elevate ribs
35
Transversospinalis
posterior primary rami Dorsal rami extends spine (includes semispinalis)
36
Splenius cervicis
posterior primary rami dorsal rami C5 C6 extends and rotates cervica spine
37
Biceps brachii
Musculocutaneous nerve arm, anterior Supinates forearm, flexes elbow, weakly flexes shoulder
38
Brachialis
Musculocutaneous nerve arm, anterior Flexes elbow
39
Coracobrachialis
Musculocutaneous nerve Arm, anterior Flexes and weakly adducts arm
40
Anconeus
Radial nerve arm posterior Weak extensor of elbow. Moves (abducts) ulna in pronation
41
Triceps brachii
radial nerve arm posterior Extends elbow. Long head stabilizes shoulder joint. medial head retracts capsule of elbow joint on extension
42
Flexor carpi radialis
median nerve forearm; anterior Flexes and abducts wrist
43
Flexor carpi ulnaris
ulnar nerve forearm; anterior Flexes and adducts wrist. Fixes pisiform during action of hypothenar muscles
44
Flexor digitorum profundus
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
Flexor digitorum superficialis
median nerve forearm; anterior Flexes proximal interphalangeal joints and secondarily metacarpophalangeal joints and wrist Superficial splits sides
46
Flexor pollicis longus
median nerve (anterior interosseous) forearm; anteiror Flexes distal phalanx of thumb
47
Palmaris longus
median nerve (anterior interosseous) forearm; anterior Flexes wrist and tenses palmar aponeurosis
48
pronator teres
median nerve forearm anterior Pronates forearm and flexes elbow from medial epicondyle
49
abductor pollicis longus
radial nerve (posterior interosseous) forearm; posterior Abducts and extends thumb at carpometacarpal joint
50
Brachioradialis
radial nerve Forearm posterior Flexes arm at elbow and brings forearm into midprone position
51
Extensor carpi radialis brevis
radial nerve (deep branch) forearm posterior Extends and abducts hand at wrist
52
Extensor carpi radialis longus
radial nerve forearm posterior Extends and abducts hand at wrist
53
Extensor carpi ulnaris
radial nerve (posterior interosseous) forearm posterior Extends and adducts hand at wrist
54
Extensor digiti minimi
radial nerve (posterior interosseous) forearm posterior Extends all joints of little finger
55
Extensor digitorum
radial nerve (posterior interosseous) forearm posterior Extends all joints of fingers
56
Extensor indicis
radial nerve (posterior interosseous) forearm posterior Extends all joints of index finger
57
Extensor pollicis brevis
radial nerve (posterior interosseous) forearm posterior Extends metacarpophalangeal joint of thumb
58
Extensor pollicis longus
Radial nerve (posterior interosseous) forearm posterior Extends interphalangeal and metacarpophalangeal joints of thumb
59
Supinator
radial nerve (deep branch) forearm posterior Supinates forearm. Only acts alone when elbow extended
60
Adductor pollicis
Ulnar nerve (deep branch) hand adductor Adducts carpometacarpal joint of thumb
61
Abductor digiti minimi
ulnar nerve (deep branch) hand hypothenar Abducts little finger at metacarpophalangeal joint
62
Flexor digiti minimi brevis
ulnar nerve (deep branch) hand hypothenar Flexes metacarpophalangeal joint of little finger
63
Opponens digiti minimi
ulnar nerve (deep branch) hand hypothenar Opposes (flexes and laterally rotates) carpometacarpal and metacarpophalangeal joints of little finger
64
Dorsal interosseous muscles
Ulnar nerve (deep branch) hand interossei Abduct from axis of middle finger. Flex metacarpophalangeal joint while extending interphalangeal joints
65
Palmar interosseous muscles
ulnar nerve (deep branch) hand interossei Adduct to axis of middle finger. Flex metacarpophalangeal joint while extending interphalangeal joints
66
Lumbrical, first and second
Median never (digital branches) hand medial Flex metacarpophalangeal joints and extend interphalangeal joints of fingers
67
Lumbrical third and fourth
ulnar nerve (deep branch) hand medial Flex metacarpophalangeal joints and extend interphalangeal joints of fingers
68
Palmaris brevis
superficial palmar branch of ulnar nerve hand superficial Steadies and corrugates skin of palm to help with grip
69
Abductor pollicis brevis
median nerve (recurrent branch) hand thenar Abducts thumb at metacarpophalangeal & carpometacarpal joints
70
Flexor pollicis brevis
median nerve (recurrent branch) hand thenar Flexes metacarpophalangeal joint of thumb
71
Opponens pollicis
median nerve (recurrent branch) hand thenar Opposes (medially rotates and flexes ) carpometacarpal and metacarpophalangeal joints of thumb
72
Pronator quadratus
median nerve Anterior interosseous nerve Pronates forearm and maintains ulna and radius opposed

SHB (22 decks)

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