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Anatomy > Muscle of the Upper Extremity > Flashcards

Muscle of the Upper Extremity Flashcards

1
Q

Deltoid

A

Action: Flexes the arm, Medially rotates the arm, abducts the arm, Laterally rotates the arm, Extends the arm
Nerve: Axillary Nerve (C5-C6)

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2
Q

Pectoralis Major

A

Action: Flexes the arm, Extends the arm, Medially rotate, Adduct
Nerve: Lateral Pectoral nerve (C5-C7), Medial pectoral nerve (C8-T1)

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3
Q

Biceps Brachii

A

Actions: Flex the arm and Flexes and supinates the forearm
Nerve: Musculocutaneous nerve (C5-C7)

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4
Q

Coracobrachialis

A

Actions: Flexes at the shoulder, adducts the arm
Nerve: Musculocutaneous nerve (C5-C7)

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5
Q

Subscapularis

A

Actons: Medially rotates the arm
Nerve: Upper and lower sub scapular nerve (C5-C7)

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6
Q

Trees Major

A

Actions: Adducts the arm, Medially rotates the arm, Extends the arm
Nerve: Lower sub scapular nerve (C5-C7)

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7
Q

Latissimus Dorsi

A

Actions: Adducts the arm, Medially rotates the arm, Extends the arm
Nerve: Thoracodorsal nerve (C6-C8)

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8
Q

Supraspinatus

A

Actions: Helps the deltoid muscle initiate the abduction, Helps stabilize the shoulder by drawing the humerus toward the glenoid fossa of the scapular
Nerve: Suprascapula (C5-C6)

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9
Q

Infraspinatus

A

Action: Laterally rotates the arm, helps stabilize the shoulder by drawing the humerus toward the gleaned fossa of the scapula
Nerve: Suprascapular nerve (C5-C6)

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10
Q

Teres Minor

A

Actions: Laterally rotates the arm, Weakly adducts the arm, Helps stablize the shoulder by drawing the humerus toward the gleaned fossa of the scapula
Nerve: Axillary nerve (C5-C6)

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11
Q

Triceps Brachii

A

Actions: Extends the arm & forearm
Nerve: Radial Nerve (C7-C8)

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12
Q

Serratus Ant

A

Action: Abducts scapula and upwardly rotates it while abducting the arm
Nerve: Long thoracic nerve (c5-C7)

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13
Q

Pectoralis Minor

A

Actions: Draw scaupula forward and downward
Nerve: Medial pectoral (C8-T1)

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14
Q

Levator Scapulae

A

Actions: Elevates medial border of scapula while downwardly rotating lateral angle, helps traps and rhomboid pulls scapula upward and medially; bends neck laterally
Nerve: Dorsal scapular (C5) and ventral primary rami of C3-C4

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15
Q

Trapezius

A

Action: Elevate and upwardly rotate scapula, extend neck. Adduct (retract) scapula, depress and upwardly rotate scapula.
Nerve: C3-C4 & CN XI

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16
Q

Rhomboid Major

A

Action: Retracts and elevates the medial border of scapula while it downwardly rotates the lateral angle
Nerve: Dorsal Scapular Nerve (C5)

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17
Q

Rhomboid Minor

A

Actions: Retracts and elevates the medial border of scapula while it downwardly rotates the lateral angle
Nerve: Dorsal Scapular (C5)

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18
Q

Brachialis

A

Action: Flexes forearm
Nerve: Musculocutaneous (C5-C6)

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19
Q

Brachioradialis

A

Action: Flexes forearm
Nerve: Radial (C5-C6)

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20
Q

Pronator Teres

A

Action: Pronates and flexes forearm
Nerve: Median Nerve (C6-C7)

21
Q

Flexor Carpi Raidalis

A

Action: Flexes and radial deviates (abducts)
Nerve: Median nerve (C6-C7)

22
Q

Palmaris Longus

A

Action: Flexes hand at wrist and tenses palmar aponeurosis
Nerve: Median (C7-C8)

23
Q

Flexor Carpi Ulnaris

A

Actions: Flexs and ulnar deviates (adducts) hand at the wrist
Nerve: Ulnar nerve (C8-T1)

24
Q

Flexor Carpi Digitorum Superficialis

A

Actions: Flexes middle phalanges. If action continues, flexes proximal phalanges, hands at wrist and forearm at elbow
Nerve: Median (C7-T1)

25
Q

Extensor Carpi Radialis Longus

A

Actions: Extends and radial deviates (abducts)
Nerve: Radial nerve (C6-C7)

26
Q

Extensor Carpi Radialis Brevis

A

Actions: Extends and radial deviates (abducts) hand at wrist
Nerve: Radial Nerve (C6-C7)

27
Q

Extensor Digitorum

A

Action: extends wrist and fingers (middle phalanx of digit 2-5)
Nerve: Posterior Interosseous branch of radial nerve (C6 and C8)

28
Q

Extensor Carpi Ulnaris

A

Actions: Extends and ulnar deviates (adducts) hand at wrist
Nerve: Radial nerve (C6-C8)

29
Q

Abductor pollicis longus

A

Action: Abduction at joints of thumb and wrist
N: Posterior interosseous branch of Radial (C6-C7)

30
Q

Extensor pollicis brevis

A

Action: Extension at joints of thumb; abduction at wrist
N: Posterior interosseous branch of Radial nerve (C6-C7)

31
Q

Extensor pollicis longus

A

A: Extension at joints of thumb; abduction at wrist
N: Posterior interosseous branch of radial (C6-C8)

32
Q

Extensor indicis

A

A: Extension and adduction at jt of index finger
N: Posterior interosseous branch of Radial (C6-C8)

33
Q

Extensor digiti minimi

A

A: Extension at jt of little finger; extension at wrist
N: Posterior interosseous branch of Radial N. (C6-C8)

34
Q

Flexor digitorum profundus

A

A: Flexion at DIP, PIP, and Wrist
N: Anterior interosseous branch of median nerve and ulnar nerve (C8-T1)

35
Q

Adductor pollicis

A

A: Adduction of thumb
N: Ulnar nerve, deep branch (C8-T1)

36
Q

Opponens pollicis

A

A: Opposition of thumb
N: Recurrent branch of the Median (C6-C7)

37
Q

Palmaris brevis

A

A: Moves skin on medial border toward midline of palm
N: Ulnar nerve, superficial branch (C8)

38
Q

Abductor digiti minimi

A

A: Abduction of little finger and flexion at its MCP jt
N: Ulnar n, deep branch (C8-T1)

39
Q

Abductor pollicis brevis

A

A: Abduction thumb
N: recurrent branch of the median n. (C8-T1)

40
Q

Flexor pollicis brevis

A

A: Flexion and adduction of thumb
N: Recurrent branch of median

41
Q

Flexor digiti minimi brevis

A

A: Flexion at 5th MCP jt
N: Ulnar N, deep branch (C8-T1)

42
Q

Opponens digiti minimi

A

A: FLexion at MCP jt; brings digit into opposition with thumb
N: Ulnar n, deep branch (C8-T1)

43
Q

Lumbrical

A

A: Flexion at MCP jt; ext at PIP and DIP jts
N: No. 1 and No. 2 by median, No. 3 and No. 4 by ulnar nerve, deep branch (C8-T1)

44
Q

Dorsal Interosseus

A

A: Abduction at MCP jt of digits 2-4, flexion at MCP jt; ext at IP jts
N: Ulnar nerve, deep branch (C8-T1)

45
Q

Palmar interosseus

A

A: Adduction at MCP jts of digits 2,4, and 5; Flexion at MCP jt; ext at IP its
N: Ulnar n, deep branch (C8-T1)

46
Q

Pronator Quadratus

A

A: Pronates forearm and hand by medial rotation of radius at radioulnar jts
N: Anterior Interosseous branch of the Median N (C5-T1)

47
Q

Supinator

A

A: Supinator forearm and hands by lateral rotation of radius at radioulnar jt
N: Deep Radial N. (C6-C8)

48
Q

Subclavius

A

A: Depresses and protracts shoulder
N: Nerve to subclavius (C5-C6)

Anatomy (3 decks)

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