Hand Flashcards by Collin Huth | Brainscape

Q

Abductor pollicis brevis

A

Action: Abducts thumb

Nerve: Recurrent branch of the median

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Q

Flexor pollicis brevis

A

Action: Flexes thumb

Nerve: Recurrent branch of the median

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Q

Opponens pollicis

A

Action: Opposition of thumb

Nerve: Recurrent branch of the median

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Q

Adductor pollicis

A

Action: Adducts thumb

Nerve: Ulnar

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Q

What three muscles form the Thenar Eminence?

A

Abductor pollicis brevis

Flexor pollicis brevis

Opponens pollicis

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Q

Palmaris Brevis (superficial)

A

Action: Tightens skin over hypothenar eminence

Nerve: Ulnar

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Q

Abductor digiti minimi

A

Action: Abducts 5th digit

Nerve: Ulnar

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Q

Flexor digiti minimi brevis

A

Action: Flexes 5th digit

Nerve: Ulnar

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Q

Opponens digiti minimi

A

Action: Laterally rotates metacarpal 5 to oppose 5th digit

Nerve: Ulnar

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Q

Dorsal Interossei (4)

A

Action: Abduct 2-4; Flex MP, Extend PIP and DIP

Nerve: Ulnar

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Q

Palmar Interossei (4)

A

Action: Adduct 1,2,4,5; Flex MP and extend PIP and DIP

Nerve: Ulnar

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Q

Lumbricals (4)

A

Action: Flext MP and Extend PIP and DIP joints

Nerve: 2 lateral - median
2 medial - ulnar

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