Lab Exam Muscles of Arm Flashcards by Lance Felicen

Q

Anterior Deltoid (Origin)

A

Lateral 1/3 of clavicle

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Q

Medial Deltoid (Origin)

A

Acromion Process

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Q

Posterior Deltoid (Origin)

A

Spine of scapula

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Q

Deltoid (Insertion)

A

Deltoid tuberosity of humerus

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Q

Deltoid (Action)

A

Abducts, extends, and flexes the arm

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Q

Biceps brachii [Long head] (Origin)

A

Supraglenoid tubercle of scapula

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Q

Biceps brachii [Short head] (Origin)

A

Coracoid process of scapula

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Q

Bicep brachii [Long head and Short head] (Insertion)

A

Radial tuberosity

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Q

Bicep brachii [Long head and Short head] (Action)

A

Flexes and supinates the arm

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Q

Brachialis (Origin)

A

Anterior surface of humerus

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Q

Brachialis (Insertion)

A

Tuberosity of ulna, coronoid process of ulna

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Q

Brachialis (Action)

A

Flexes elbow

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Q

Flexor carpi ulnaris (Origin)

A

Medial epicondyle of humerus

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Q

Flexor carpi ulnaris (Insertion)

A

Pisiform bone, hook of hamate, base of 5th metacarpal

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Q

Flexor carpi ulnaris (Action)

A

Flex and adduct wrist / ulnar deviation

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Q

Palmaris longus (Origin)

A

Medial epicondyle of humerus

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Q

Palmaris longus (Insertion)

A

Palmar aponeurosis

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Q

Palmaris longus (Action)

A

Flex wrist

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Q

Flexor carpi radialis (Origin)

A

Medial epicondyle of humerus

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Q

Flexor carpi radialis (Insertion)

A

Bases of 2nd and 3rd metacarpal bones

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Q

Flexor carpi radialis (Action)

A

Flexes and abducts wrist / radial deviation

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Q

Flexor digitorium superficialis (Origin)

A

Medial epicondyle of humerus

Q

Flexor digitorium superficialis (Insertion)

A

Both sides of middle phalanges of the 4 fingers

Q

Flexor digitorium superficialis (Action)

A

Flexes middle phalanges

Q

Brachioradialis (Origin)

A

Lateral epicondyle of humerus

Q

Brachioradialis (Insertion)

A

Styloid process of radius

Q

Brachioradialis (Action)

A

Flex forearm

Q

Supraspinatus (Origin)

A

Supraspinous fossa of scapula

Q

Supraspinatus (Insertion)

A

Greater tuberosity of the humerus

Q

Supraspinatus (Action)

A

Abduct the arm

Q

Infraspinatus (Origin)

A

Infraspinous fossa of scapula

Q

Infraspinatus (Insertion)

A

Greater tuberosity of the humerus

Q

Infraspinatus (Action)

A

Laterally rotates the arm

Q

Subscapularis (Origin)

A

Anterior surface of scapula

Q

Subscapularis (Insertion)

A

Lesser tuberosity of the humerus

Q

Subscapularis (Action)

A

Medially rotates the arm

Q

Teres major [not rotator cuff] (Origin)

A

Lateral border of scapula

Q

Teres major [not rotator cuff] (Insertion)

A

Medial lip of intertubercular groove of the humerus

Q

Teres major [not rotator cuff] (Action)

A

Extends, abducts, and medially rotates the humerus (swimming)

Q

Teres minor (Origin)

A

Lateral border of scapula

Q

Teres minor (Insertion)

A

Greater tuberosity of the humerus

Q

Teres minor (Action)

A

Laterally rotates the arm

Q

Triceps brachii (Origin)

A

Infraglenoid tubercle of scapula, lateral and medial surface of humerus

Q

Triceps brachii (Insertion)

A

Olecranon process of ulna

Q

Triceps brachii (Action)

A

Extends elbow

Q

Extensor carpi radialis longus (Origin)

A

Lateral epicondyle of humerus

Q

Extensor carpi radialis longus (Action)

A

Extends and abducts the hand

Q

Extensor carpi radialis brevis (Origin)

A

Lateral epicondyle of humerus

Q

Extensor carpi radialis brevis (Action)

A

Extends and abducts the hand

Q

Extensor digitorium communis (Origin)

A

Lateral epicondyle of the hand

Q

Extensor digitorium communis (Action)

A

Extends fingers

Q

Extensor carpi ulnaris (Origin)

A

Lateral epicondyle of humerus

Q

Extensor carpi ulnaris (Action)

A

Extends and adducts the hand