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27 Cards in this Set
- Front
- Back
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Carpal Tunnel |
Contains: median nerve
"tunnel" is formed by the distal row of carpal bones (floor) and the transverse carpal ligament (roof) |
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Identify Extrinsic Muscles |
ANTERIOR: Flexor Digitorum Superficialis Flexor Digitorum Profundus Flexor Pollicis Longus
POSTERIOR: Abductor Pollicis Longus Extensor Pollicis Brevis Extensor Pollicis Longus Extensor Digitorum Extensor Indicis Extensor Digit Minimi
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Identify Intrinsic Muscles |
THENAR: Flexor Pollicis Brevis Abductor Pollicis Brevis Opponens Pollicis
DEEP PALM: Adductor Pollicis Interossei Lumbricals
HYPOTHENAR: Flexor Digiti Minimi Abductor Digiti Minimi Opponens Digiti Minimi |
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What makes up the snuff box? (Formed by the border of the: ) |
*Abductor Pollicis Longus
*Extensor Pollicis Brevis
*Extensor Pollicis Longus
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Muscles of Hypothenar |
*Flexor Digiti Minimi
*Abductor Digiti Minimi
*Opponens Digiti Minimi |
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Muscles of Thenar |
*Flexor Pollicis Brevis
*Abductor Pollicis Brevis
*Opponens Pollicis
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Extensor Digitorum |
O: Lateral epicondyle of the humerus
I: Base of distal phalanx of the second through fifth fingers
A: Extends all three joints of the finger (MCP, PIP, and DIP)
N: Radial nerve ( C6, C7, C8) |
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Extensor Pollicis Longus |
O: Middle posterior ulna and interosseous membrane
I: Base of distal phalanx of thumb
A: Extends all three joints of the thumb (CMC, MCP, and IP)
N: Radial nerve ( C6, C7, C8) |
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Extensor Pollicis Brevis |
O: Posterior distal radius
I: Base of the proximal phalanx of thumb
A: Extends CMC and MCP joints of thumb
N: Radial nerve ( C6, C7) |
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Flexor Pollicis Brevis |
O: Trapezium and flexor retinaculum
I: Proximal phalanx of the thumb
A: Flexes the CMC and MCP joints of thumb
N: Median nerve (C6, C7) |
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Abductor Pollicis Brevis |
O: Scaphoid, trapezium, and flexor retinaculum
I: Proximal phalanx of the thumb
A: Abducts the thumb ( CMC joint)
N: Median nerve ( C6, C7) |
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Lumbrical |
O: Tendon of the flexor digitorum profundus muscle
I: Tendon of the extensor digitorum muscle
A: Flex the MCP joint while extending the PIP and DIP joints
N: First and second lumbricals: medial nerve Thrid and fourth lumbricals: Ulnar nerve ( C6, C7, C8) |
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Palmar Interossei |
O: 1st, 2nd, 4th, and 5th metacarpals
I: Base of respective proximal phalanx
A: Adducts fingers at MCP joint
N: Ulnar nerve (C8, T1) |
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Dorsal Interossei |
O: Adjacent metacarpals
I: Base of proximal phalanx
A: Abduct fingers at MCP joint
N: Ulnar nerve (C8, T1) |
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Adductor Pollicis |
O: Capitate, base of the second metacarpal, palmar surface of the third metacarpal
I: Base of proximal phalanx of thumb
A: Adducts thumb (CMC joint)
N: Ulnar nerve (C8, T1) |
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Opponens Pollicis |
O: trapezium and flexor retinaculum
I: First metacarpal
A: Opposes the thumb ( CMC Joint)
N: Median nerve ( C6, C7) |
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Opponens Digiti Minimi |
O: Hamate and flexor retinaculum
I: Fifth metacarpal
A: Opposes the fifth finger ( CMC joint)
N: Ulnar nerve ( C8, T1) |
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Abductor Digiti Minimi |
O: Pisiform and tendon of flexor carpi ulnaris
I: Proximal phalanx of fifth finger
A: Abducts the MCP joint of the fifth finger
N: Ulnar nerve ( C8, T1) |
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Flexor Digiti Minimi |
O: Hamate and flexor retinaculum
I: Base of proximal phalanx of the fifth finger
A: Flexes CMC and MCP joints of the fifth finger
N: Ulnar nerve ( C8, T1) |
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Abductor Pollicis Longus |
O: Posterior radius, interosseous membrane, middle ulna
I: Base of the first metacarpal
A: Abducts thumb ( CMC)
N: Radial nerve (C6, C7) |
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Flexor Pollicis Longus |
O: Radius, anterior surface
I: Distal phalanx of thumb
A: Flexes all three joints of the thumb ( CMC, MCP, IP)
N: Median Nerve (C8, T1) |
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Extensor Digiti Minimi |
O: Lateral epicondyle of humerus
I: Base of distal phalanx of fifth finger
A: Extends all three joints of fifth finger ) MCP, PIP, and DIP)
N: Radial nerve ( C6, C7, C8) |
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Extensor Indicis |
O: Distal Ulna
I: Base of distal phalanx of the second finger
A: Extends all three joints of the second finger ( MCP, PIP, and DIP)
N: Radial nerve ( C6, C7, C8) |
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Flexor Digitorum Profundus |
O: Upper three-fourths of the ulna
I: Distal phalanx of the four fingers
A: Flexes all three joints of the fingers ( MCP, PIP, and DIP)
N: Median and ulnar nerves (C8, T1) |
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Flexor Digitorum Superficialis |
O: Common flexor tendon on the medial epicondyle, coronoid process, and radius
I: Sides of the middle phalanx of the four fingers
A: Flexes the MCP AND PIP joints of the fingers
N: Median nerve ( C7, C8, T1) |
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Flexor Retinaculum |
prevents "bow stringing" of tendons when the wrist flexes |
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Extensor Retinaculum |
Holds extensor tendons close to the wrist; especially during wrist extension |
