Thenar Eminence muscles Flashcards by Funda Buthelezi

Q

Origin: Abductor Pollicis Brevis

A

Trapezium and scaphoid

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Q

Insertion: Abductor Pollicis Brevis

A

Proximal phalanx/ Digit 1

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Q

Action: Abductor Pollicis Brevis

A

Abducts digit 1 @ MP joint

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Q

Innervation: Abductor Pollicis Brevis

A

Median Nerve

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Q

Origin: Opponens pollicis

A

Trapezuim

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Q

Insertion: Opponens pollicis

A

1st metacarpal

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Q

Action: opponens pollicis

A

medially rotates 1st metacarpal

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Q

Origin: Flexor Pollicis Brevis

A

Trapezium, trapezoid and capitate bones

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Q

insertion: Flexor pollicis brevis

A

Proximal phalanx/ digit 1

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Q

Action: Flexor pollicis longus brevis

A

Flexes digit 1 @ MP joint

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Q

Nerve Supply: Abductor pollicis brevis

A

Median nerve

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Q

Nerve supply: opponens pollicis

A

median nerve

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Q

Nerve supple: Flexor pollicis brevis

A

Ulnar nerve and median nerve

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Q

Origin: Adductor Pollicis

A

Trapezoid, 3rd metacarpal ( transverse head)

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Q

Insertion: Adductor Pollicis

A

Proximal phalanx/ digit 1

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Q

Action: adductor Pollicis

A

Adducts digit 1

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Q

Trapezium and scaphoid

A

Origin: Abductor Pollicis Brevis

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Q

Proximal phalanx/ Digit 1

A

Insertion: Abductor Pollicis Brevis

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Q

Abducts digit 1 @ MP joint

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A

Action: Abductor Pollicis Brevis

Q

Median Nerve

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A

Innervation: Abductor Pollicis Brevis
Opponens pollicis
pronator quadratus
flexor pollicis longus

Q

Trapezuim

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A

Origin: Opponens pollicis

Q

1st metacarpal

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A

Insertion: Opponens pollicis

Q

medially rotates 1st metacarpal

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A

Action: opponens pollicis

Q

Trapezium, trapezoid and capitate bones

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A

Origin: Flexor Pollicis Brevis

Origin: Abductor Digi minimi

Pisiform

Pisiform

Origin: Abductor Digi minimi

Origin: Flexor digit quinti minimi

Hamate

Origin: Opponens digiti minimi

Hamate

Origin: Lumbricales

Tendons of the flexor digitorum profundus muscle

Origin: Dorsal

2nd, 3rd, and 4th metacarpals

Origin: palmer

2nd 3rd 4th and 5th metacarpals

Insertions: Flexor digit quinti minimi

proximal phalnx/ digit 5

Insertions: flexor digiti quinti/ minimi

proximal phalanx/ digit 5

Insertion: opponens digiti quinti/ minimi

5th metacarpal

Insertion: Lumbricales

Tendons of the extensor digitorum muscle

Insertion: Dorsal

Proximal phalanx of digit 2,3,4

Inertion: palmer

Proximal phalanx of digit 2,3,4,and 5

Action: Adductor Pollicis brevis

Abducts digit 1 @MP joint

Action: Opponens pollicis

Medially rotates 1st metacarpal

Action: flexor Pollicis Brevis

Flexes digit 1 @MP joint

Action: Adductor pollicis

Adducts digit 1

action: Abductor Digiti quinti/ minimi

abducts digit 5

Action: Flexor digiti quinti/ minimi

Flexes digit 5 @ MP joint

Actions: Opponens Digit quinti/ minimi

Laterally rotates 5th metacarpal

Action: lumbricles

Flexes MP joiny

Action: Dorsal

Extend IP joint

Action: Palmer

Flex MP joints | Extend IP joints.