Term
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Definition
proximal attachment: proximal lat. supracondylar ridge
Distal attachment: lateral distal radius
Nerve: radial nerve (C5,6,7)
Action: flexes forearm |
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Term
| Extensor Carpi Radialis Longus |
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Definition
proximal attachment: lat. supracondylar ridge
Distal attachment: base 2nd metacarpal
Nerve: radial (C6,7)
Action: extend & abduct wrist |
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Term
| Extensor Carpi Radialis Brevis |
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Definition
proximal attachment: lateral epicondyle
Distal attachment: base 3rd metacarpal
Nerve: deep branch radial (C7,8)
Action: extend & abduct wrist |
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Term
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Definition
proximal attachment: lat. epicondyle & post. border ulna
Distal attachment: base 5th metacarpal
Nerve: PIN (C7,8)
Action: extend & adduct (ulnar deviation) wrist |
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Term
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Definition
proximal attachment: lateral epicondyle
Distal attachment: extensor "hood" medial four digits
Nerve: PIN (C&,8)
Action: extends wrist & medial four MCP jts. |
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Term
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Definition
proximal attachment: lateral epicondyle
Distal attachment: Extensor "hood" 5th digit
Nerve: PIN (C7,8)
Action: extends 5th MCP & IP's jts. |
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Term
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Definition
proximal attachment: lateral, posterior and anterior surfaces of proximal radius
Distal attachment: lateral epicondyle, radial collateral and annular ligaments, supinator crest of ulna
Nerve: deep branch radial nerve (C5,6)
Action: supinates forearm |
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Term
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Definition
proximal attachment: post. surfaces ulna, radius, IM
Distal attachment: basc 1st metacarpal
Nerve: PIN (C7,8)
Action: abducts & extends thumb at 1st carpometacarpal (CMC) |
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Term
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Definition
proximal attachment: post. surface radius & IM
Distal attachment: base 1st proximal phalanx (pp)
Nerve: PIN (C7,8)
Action: extends PP at 1st metacarpophalangeal (MCP) |
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Term
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Definition
proximal attachment: post.surface middle 1/3 ulna & IM
Distal attachment: base 1st DP
Nerve: PIN(C7,8)
Action: extends DP at IP jt |
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Term
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Definition
proximal attachment: post.surface ulna & IM
Distal attachment: extensor expansion 2nd digit
Nerve: PIN (C7,8)
Action: extends 2nd digit |
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Term
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Definition
proximal attachment: flexor retinaculum, scaphoid & trapezium
Distal attachment: lateral side base 1st PP
Nerve: recurrent mendian n. (C8,T1)
Action: flexes 1st CMC & MP jts. |
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Term
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Definition
proximal attachment: flexor retinaculum,
scaphoid & trapezuim
Distal attachment: lateral side base 1st PP
Nerve: abducts 1st CMC jt. & assists opposition |
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Term
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Definition
proximal attachment: flexor retinaculum, scaphoid trapezium
Distal attachment: lateral side 1st MC
Nerve: recurrent median n(C8,T1)
Action: opposition = medial rotation 1st CMC & abduction + flexion at 1st MCP jts |
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Term
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Definition
proximal attachment: #1 & 2: lateral 2 tendons FDP, #3 & 4: medial 3 tendons FDP
Distal attachment: lateral sides extensor hood
Nerve: #1 & 2 median nerve (C8,T1), #3 & 4 deep branch ulnar nerve (C8,T1)
Action: flex MCP & extend JP jts. |
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Term
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Definition
proximal attachment: hook of hamate & flexor retinaculum
Distal attachment: medial side 5th PP
Nerve: deep branch ulnar n. (C8,T1)
Action: flexes 5th PP |
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Term
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Definition
proximal attachment: pisiform none
Distal attachment: medial side 5th PP
Nerve: deep branch ulnar n. (C8,T1)
Action: abducts 5th digit |
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Term
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Definition
proximal attachment: hook of hamate & flexor retinaculum
Distal attachment: medial border 5th MC
Nerve: deep branch ulnar n. (C8,T1)
Action: draws 5th MC anteriorly & laterally rotates it |
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Term
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Definition
proximal attachment: adjacent sides of two MC
Distal attachment: extensor hoods & PP digits 2-4
Nerve: deep branch ulnar n. (C8,T1)
Action: abduct digit from midline (3rd digit), flex MCP & extend IP jts. |
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Term
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Definition
proximal attachment: oblique head bases 2nd & 3rd MCs, capitate; transverse head ant. surface body 3rd MC
Distal attachment: medial side base 1st PP
Nerve: deep branch ulnar n (C8,T1)
Action: adducts thumb (moves towards 3rd digit) |
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Term
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Definition
proximal attachment: palmar surfaces 2nd,4th,5th,MC
Distal attachment: extensor hoods & bases 2nd,4th,5th PPs
Nerve: deepbranch ulnar n. (C8,T1)
Action: adduct digits & flex MCP & extend IP jts. |
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