Exercise 7: The Muscular System (Upper Extremity Muscles I) Flashcards by Sebastian Morón

Q

Origin of deltoid

A

scapula,

clavicle

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Q

Origin of biceps brachii

A

proximal radius

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Q

Origin of brachialis

A

humerus

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Q

Origin of brachioradialis

A

humerus

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Q

Origin of pronator teres

A

humerus,

coronoid process of ulna

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Q

Origin of flexor carpi radialis

A

medial epicondyle of humerus

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Q

Origin of palmaris longus

A

medial epicodyle of humerus

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Q

Origin of flexor carpi ulnaris

A

medial epicondyle of humerus,

ulna

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Q

Origin of extensor carpi radialislongus

A

humerus

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Q

Origin of extensor digitorum

A

lateral epicondyle of humerus

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Q

Origin of extensor carpi ulnaris

A

lateral epicondyle of humerus

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Q

Insertion of extensor carpi ulnaris

A

5th metacarpal

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Q

Insertion of extensor digitorum

A

distal phalanges of 2nd to 5th digits

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Q

Insertion of extensor carpi radialislongus

A

2nd and 3rd metacarpals

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Q

Insertion of flexor carpi ulnaris

A

pisiform,
hamate,
base of 5th metacarpal

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Q

Insertion of palmaris longus

A

flexor retinaculum,

palmar aponeurosis

Q

Insertion of flexor carpi radialis

A

2nd and 3rd metacarpals

Q

Insertion of pronator teres

A

radius

Q

Insertion of brachioradialis

A

styloid process of radius

Q

Insertion of brachialis

A

coronoid process of ulna

Q

Insertion of biceps brachii

A

proximal radius

Q

Insertion of deltoid

A

humerus

Q

Action of deltoid

A

abducts arm,

flexes and extends shoulders

Q

Action of biceps brachii

A

flexes elbow,

supinates arm

Action of brachialis

flexes arm

Action of brachioradialis

flexes forearm | synergist of brachialis

Action of pronator teres

pronates forearm

Action of flexor carpi radialis

flexes wrist, | abducts hand

Action of palmaris longus

weakly flexes hand at wrist joint

Action of flexor carpi ulnaris

flexes and abducts hand at wrist joint

Action of extensor carpi radialislongus

extends and abducts wrist

Action of extensor digitorum

extends fingers, | flares or abducts fingers

Action of extensor carpi ulnaris

extends and abducts wrist