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Anatomy-Limbs > Upper limbs-Muscle innvervations, blood supply and actions (flip version) > Flashcards

Upper limbs-Muscle innvervations, blood supply and actions (flip version) Flashcards

1
Q

Trapezius

A

Accessory Nerve XI (C1-C5) and C3-C4 proprioception

Superficial branch of transverse cervical artery

  1. Rotate scapula during abduction of humerus above horizontal;
  2. shrugs shoulder (self direct)
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2
Q

Latissimus Dorsi

A

Thoracodorsal Nerve (of brachial plexus C6, C7, C8)

Thoracodorsal artery

  1. Extends humerus
  2. Adducts humerus
  3. Medially rotates humerus
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3
Q

Levator Scapulae

A

C3, C4 anterior rami and Dorsal scapular nerve

Transverse Cervical artery

  1. Elevate Scapula
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4
Q

Rhomboid Major

A

Dorsal scapular nerve - C4 and C5

Dorsal scapular artery

  1. Retract/adduct and elevate scapula; rotates medially = adduct (self direct)

Gray’s says “Retracts (adducts) and
elevates scapula”

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5
Q

Rhomboid Minor

A

Dorsal scapular nerve - C4 and C5

Dorsal scapular artery

Retract/adduct and evelate scapula; rotates medially = adducts (self direct)

Gray’s says “Retracts (adducts) and
elevates scapula”

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6
Q

Serratus Posterior Superior

A

Anterior rami of upper thoracic nerves (T2 - T5)

Intercostal arteries

Elevate ribs 2 - 5 (respiratory function)

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7
Q

Serratus Posterior Inferior

A

Anterior rami of lower thoracic nerves (T9 - T12)

Intercostal arteries

Depress ribs 9 - 12, prevents lower ribs from being elevated when diaphram contracts (respiratory function)

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8
Q

Serratus Anterior

A

LTN

Circumflex scapular

Protract Scapula, Rotate laterally (during Abduction), Depress Scapula

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9
Q

Splenius Capitis

A

Posterior Rami of middle cervical nerves

muscular branches of aorta

Together: draw head back
Individual: rotate head to one side, lateral bend

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10
Q

Splenius Cervicis

A

Posterior rami lower cervical nerves

Transverse and occipital artery

Together: draw head back
Individual: rotate head to one side, lateral bend

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11
Q

Erector Spinae

A

Posterior branch of spinal nerve

Lateral Sacral Artery

Extensors of vertebral column and head; Bilaterally straighten back and pull head posteriorly; Unilaterally bend the vertebral column laterally and turn head

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12
Q

Pectoralis Major

A

Medial pectoral nerve
Lateral pectoral nerve

Pectoral branch of the Thoracoacromial Trunk

Adduction, medial rotation, and flexion of the humerus

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13
Q

Deltoid

A

Axillary nerve (C5,C6)

Posterior circumflex humeral artery
Deltoid branch of Thoracoacromial artery

Major abductor of the arm (To 90˚)

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14
Q

Pectoralis Minor

A

Medial pectoral nerve (C5, C6, C7, C8, T1)

Pectoral branch of the Thoracoacromial Trunk

Pulls tip of shoulder down, protracts scapula

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15
Q

Serratus Anterior

A

Long thoracic nerve (C5, C6, C7)

Circumflex scapular artery

Protraction and rotation of scapula, keeps medial border & inferior angle of scapula opposed to thoracic wall

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16
Q

Teres Major

A

Inferior subscapular nerve [C5, C6, C7]

Circumflex scapular artery

Adducts and medially rotates arm

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17
Q

Teres Minor

A

Axillary nerve [C5, C6]

Circumflex scapular artery

Rotator cuff muscle; Lateral rotation of arm, adduction

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18
Q

Supraspinatus

A

Suprascapular nerve [C5, C6]

Suprascapular artery

Rotator cuff muscle; initiation of abduction of arm to 15° at glenohumeral joint

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19
Q

Infraspinatus

A

Suprascapular nerve [C5, C6]

Suprascapular artery

Rotator cuff muscle; lateral rotation of arm at the glenohumeral joint

20
Q

Subclavius

A

Nerve to subclavius (C5, C6)

Thoracoacromial trunk, clavicular branch

Pulls clavicle medially to stabilize sternoclavicular joint

21
Q

Subscapularis

A

Upper and lower subscapular nerves [C5, C6, (C7)]

transverse cervical artery, subscapular artery

Rotator cuff muscle; medial rotation of the arm at the glenohumeral joint

22
Q

Coracobrachialis

A

Musculocutaneous nerve [C5, C6, C7]

Brachial artery

Flexor of the arm at the glenohumeral joint; adducts arm

23
Q

Triceps brachii

A

Radial nerve

Deep brachial artery, aka profunda brachii artery

Extension of the forearm at elbow; long head - extension and adduction of arm at shoulder joint

24
Q

Coracobrachialis

A

Musculocutaneous nerve

Brachial artery

Flexion of arm at shoulder

25
Q

Biceps brachii

A

Musculocutaneous nerve

Brachial artery

Flexion of forearm at elbow and supinator of forearm

26
Q

Brachialis

A

Musculocutaneous nerve

Brachial artery

Flexion of forearm at elbow

27
Q

Flexor carpi ulnaris

A

Ulnar nerve

Ulnar artery (muscular branches)

Flexes and adducts wrist joint

28
Q

Palmaris longus

A

Median nerve

Ulnar artery

Flexes wrist join

29
Q

Flexor carpi radialis

A

Median nerve

Ulnar artery

Flexes and abducts wrist joint

30
Q

Pronator teres

A

Median nerve

Ulnar and radial arteries

Pronation

31
Q

Flexor digitorum superficialis

A

Median nerve

Ulnar artery

Flexes proximal interphalangeal joints and metacarpophalangeal joints of fingers (not thumb); flexes wrist

32
Q

Flexor digitorum profundus

A

Lateral half: median nerve (anterior interosseous nerve); Medial half: ulnar nerve

Ulnar and anterior interosseous arteries

Flexes distal interphalangeal joints and metacarpophalangeal joints of fingers (not thumb); flexes wrist

33
Q

Flexor pollicis longus

A

Median nerve (anterior interosseous nerve)

Anterior interosseous artery

Flexes interphalangeal and metacarpophalangeal joint of thumb

34
Q

Pronator quadratus

A

Median nerve (anterior interosseous nerve)

Anterior interosseous artery

Pronation

35
Q

Brachioradialis

A

Radial nerve

Radial recurrent artery

Flexor of elbow when arm is mid-pronated

36
Q

Extensor carpi radialis longus

A

Radial nerve

Radial artery

Extends and abducts wrist

37
Q

Extensor carpi radialis brevis

A

Deep branch of radial nerve

Radial artery

Extends and abducts wrist

38
Q

Extensor digitorum

A

Posterior interosseous nerve (continuation of deep branch or radial n.)

Interosseous recurrent and posterior interosseous arteries

Extends fingers (not thumb) and wrist

39
Q

Extensor digiti minimi

A

Posterior interosseous nerve

Interosseous recurrent artery

Extends little finger, and wrist

40
Q

Extensor carpi ulnaris

A

Posterior interosseous nerve

Ulnar artery

Extends and adducts wrist

41
Q

Anconeus

A

Radial nerve

Middle collateral branch of deep brachial artery, recurrent interosseous artery

Abduction of ulna in pronation

42
Q

Supinator

A

Posterior interosseous nerve

Recurrent interosseous artery

Supination

43
Q

Abductor pollicis longus

A

Posterior interosseous nerve

Posterior interosseous artery

Abducts carpometacarpal joint of thumb

44
Q

Extensor pollicus brevis

A

Posterior interosseous nerve

Posterior interosseous artery

Extends metacarpophalageal and carpometacarpal joint of thumb

45
Q

Extensor pollicus longus

A

Posterior interosseous nerve

Posterior interosseous artery

Extends interphalangeal joint of thumb and the other two joints of thumb

46
Q

Extensor indicis

A

Posterior interosseous nerve

Posterior interosseous artery

Extends index finger

Anatomy-Limbs (4 decks)

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