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MSK Exam 1 > Arm Muscles > Flashcards

Arm Muscles Flashcards

1
Q

Pectoralis Major M

A

Shoulder joint:
adduction
Medical Rotation
Flexion

Inn: Medial Pectoral N
Lateral Pectoral N

Cardio: Thoracoacromial A

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2
Q

Pectoralis Minor M

A

Scapula Depression
aids in respiration because attaches to the coracoid process

inn: Medial Pectoral N

Blood supply: Thoracoacromial A

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3
Q

Subclavius M

A

Depresses the clavicle

Inn: Nerve to subclavius or subclavian nerve

Blood supply: Thoracoacromial A

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4
Q

Serratus Anterior M

A

Scapula protraction and rotation of glenoid cavity superiorly

inn: Long Thoracic

Blood supply: Lateral thoracic: upper part and thoracodorsal for the lower part

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5
Q

Deltoid M

A

Shoulder joint:
Flexion, medial rotation, Abduction, Extension, and lateral rotation

Inn: Axillary n

Blood supply: Posterior circumflex humeral A
deltoid branch of thoracoacromial A

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6
Q

Subscapularis M

A

Arm medial rotation
Rotator cuff muscle

inn: Upper subscapular N
Lower subscapular N

Blood supply: Subscapular A
Transverse cervical A

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7
Q

Supraspinatus M

A

Shoulder joint:
Abduction, stabilizes the joint
rotator cuff muscle

Inn: Suprascapular n

Blood supply: Suprscapular A

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8
Q

Infraspinatus M

A

Arm: lateral rotation
rotator cuff muscle

Inn: Suprascapular N

Blood supply: Suprascapular A
circumflex scapular A

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9
Q

Teres Minor M

A

Shoulder joint: lateral rotation
rotator cuff muscle

Inn: Axillary

Blood supply: Posterior circumflex humeral A
Circumflex scapular A

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10
Q

Teres Major M

A

Shoulder Joint: Medial Rotation

Inn: Lower subscapular A

Blood supply: Subscapular A
circumflex scapular A

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11
Q

Biceps Brachii M

A

Short head: Coracoid process
Long head: supraglenoid tubercle

Forearm: supination
elbow: flexion
Shoulder joint: flexion

Inn: Musculocutaneous N

Blood supply: Brachial A

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12
Q

Coracobrachialis M

A

Shoulder joint: Flexion and Adduction

inn: musculocutaneous N

Blood supply: Brachial A

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13
Q

Brachialis M

A

Elbow: Flexion

Inn: Musculocutaneous N

Blood supply: Radial Recurrent A

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14
Q

Triceps Brachii

A

Lateral head: Attach Radial groove
Medial head: attach radial Groove
Long head: most medial and attaches infra glenoid tubercle

Elbow:extension
Shoulder joint: Extension

Inn: Radial N

Blood supply: Profunda Brachii

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15
Q

Anconeus M

A

Acts with Triceps Brachii: extends forearm and stabilizes elbow

Inn: Radial N

Blood supply: Deep Brachial A

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16
Q

Pronator Teres M

A

Forearm: Pronation
Elbow: Flexion

Inn: Median N

Blood supply: Ulnar A

medial Humeral Epicondyle to the lateral aspect of the radius

17
Q

Flexor Carpi Radialis

A

Wrist: flexion and Abduction

medial humeral epicondyle to metacarpals 2/3

inn: Median N

Blood supply: Ulnar A

18
Q

Palmaris Longus M

A

Wrist: Fexion

medial humeral Epicondyle attaches to palmar Aponeurosis

inn: Median N

Blood supply: Ulnar A

19
Q

Flexor Digitorum Superficialis M

A

Middle Phalange 2-5 flexion

Attaches intermediate phalange of digits 2-5

inn: Median N

Blood supply: Ulnar artery

20
Q

Flexor Carpi Ulnaris M

A

wrist: flexion and adduction

Attaches to the pisiform, hook of the hammate, 5th metacarpal

inn: Ulnar N

Blood supply: Ulnar A

21
Q

Flexor Digitorum Profundus M

A

Distal Phalange 2-5 flexion

Attaches to the distal phalange 2-5

inn: Lateral part is the Anterior interosseous N
medial part: Ulnar N

Blood supply: Anterior Interosseus A

22
Q

Flexor Pollicis Longus

A

Distal phalange (thumb) flexion

attaches to the base of the distal phalanax of the pollux

inn: Anterior interosseous N of the median N

Blood supply: Anterior Interosseus A

23
Q

Pronator Quadratus M

A

forearm: Pronation

attaches to radius and ulna distally

inn: Anterior interosseus branch of the median N

Blood supply: Anterior interosseus A

24
Q

Brachioradialis

A

Elbow flexion

lateral humeral supracondylar ridge to the lateral aspect of the distal radius

inn: Radial N

Blood supply: Radial Recurrent

25
Q

Extensor Carpi Radialis Longus M

A

lateral supracondylar ridge to meta carpal 2

Wrist: extension and ABduction

inn: Radial N

Blood supply: Radial A

26
Q

Extensor Carpi Radialis brevis

A

Wrist extension and ABduction

Humerus lateral epicondyle to base of metacarpal 3

Inn: Deep Radial N

Blood supply: Radial A

27
Q

Extensor Digitorum M

A

attaches to digits 2-5 on all metacarpophalangeal, proximal, and distal, interphalangeal joints

inn: Posterior interosseous branch of the Radial N

Blood supply: Posterior Interosseous

28
Q

Extensor Digiti minimi

A

Extend all phalanges of digit 5

Attaches to digit 5 from Lateral humeral epicondyle

inn: Posterior interosseous N

Blood supply: Posterior Interosseus A

29
Q

Extensor Carpi Ulnaris

A

Wrist: Extension and Adduction

goes form lateral Humeral Epicondyle to the base of the 5th metacarpal

inn: Posterior interosseus N of the Radial nerve

Blood supply: Ulnar Artery

30
Q

Supinator M

A

Forearm Supination

Attaches from the lateral epicondyle and the ulna to the radius

inn: Deep Radial N

Blood supply: Radial Recurrent A

31
Q

Abductor pollicis longus

A

Thumb extension and abduction

goes from the ulna and radius to the 1st metacarpal

inn: posterior interosseous N

blood supply: Posterior interosseous a

32
Q

Extensor Indicis M

A

digit 2 extension

attaches to the extensor expansion of digit 2

inn: Posterior interosseous N

Blood supply: Posterior Interosseus A

33
Q

Extensor Pollicis Longus

A 
Distal Phalange (thumb) extension
and ABduct the wrist

Ulna to the base of the distal Phalanx of the pollux

inn: Posterior Interosseous N

Blood supply: Posterior Interosseous A

34
Q

Extensor Pollicis Brevis M

A

Abduct the hand and extend the 1st metacarpal and proximal phalanges of the pollux

inn: Posterior interosseous Nerve

Blood supply: Posterior Interosseous A

MSK Exam 1 (26 decks)

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