Muscles of Forearm (Antebrachium) Flashcards by Justina Yeung | Brainscape

Q

Pronator teres

A

O: humerus and ulna
I: radius

pronation, weak elbow flexion

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Q

Flexor carpi radialis (PM)

A

O: humerus
I: metacarpals

PM for hand flexion and abduction

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Q

Palmaris longus

A

O: humerus
I: palmar aponeurosis

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Q

Flexor carpi ulnaris (PM)

A

O: humerus and ulna
I: metacarpal

PM for hand flexion and adduction

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Q

Flexor digitorum superficialis (PM)

A

O: humerus, ulna, and radius
I: phalanges 2-5

PM for flexion of wrist and phalanges

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Q

Flexor pollicis longus

A

O: radius
I: thumb

flexion of distal phalanx of thumb

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Q

Flexor digitorum profundus

A

O: ulna
I: phalanges 2-5

flexion of distal interphalangeal joints

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Q

Pronator quadratus (PM)

A

O: ulna
I: radius

PM of forearm pronation

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Q

Brachioradialis (repeat)

A

O: humerus
I: radius

synergist in forearm flexion

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Q

Extensor carpi radialis longus

A

O: humerus
I: metacarpal

hand extension and abduction

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Q

Extensor carpi radialis brevis

A

O: humerus
I: metacarpal

also hand extension and abduction

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Q

Extensor digitorum (PM), Extensor digiti minimi

A

O: humerus
I: phalanges 2-5

PM of finger extension
also does wrist extension

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Q

Extensor carpi ulnaris

A

O: humerus and ulna
I: metacarpal

hand extension and adduction

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Q

Supinator (PM)

A

O: humerus and ulna
I: radius

PM for supination, assists biceps brachii

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Q

Abductor pollicis longus

A

O: radius and ulna
I: first metacarpal

thumb extension and abduction

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Q

Extensor pollicis brevis and longus

A

O: radius and ulna
I: thumb

thumb extension

Q

Extensor indicis

A

O: ulna
I: index finger

index finger extension