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Muscle Origins, Insertions, Actions, & Innervations (Arm, Elbow, Forearm, and Hand)

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cbainbridge9818's version from 2015-07-24 21:06

Elbow Muscles Innervated by the Musculocutaneous Nerve

Question Answer Column 3 Column 4 Column 5
Biceps BrachiCoracoid process and tubercle above glenoid cavity.Radial tuberosityElbow flexion, forearm supinationMusculocutaneous Nerve
BrachialisAnterior shaft of humerusCoronoid process of UlnaElbow flexionMusculocutaneous Nerve
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Elbow Muscles Innervated by the Radial Nerve

Question Answer Column 3 Column 4 Column 5
BrachioradialisDistal lateral end of humerusLateral surface of proximal and distal end of radiusElbow flexionRadial Nerve
Tricepstubercle below glenoid cavity, lateral & medial surfaces of humerusOlecranon process of ulnaElbow extensionRadial Nerve
AnconeusLateral epicondyleOlecranon fossaAssists elbow extensionRadial Nerve C6, C7
SupinatorLateral epicondyle of humerus and crest of ulnalateral surface of radiusForearm supinationRadial Nerve
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Wrist Muscles Innervated by the Radial Nerve

Question Answer Column 3 Column 4 Column 5
Extensor Carpi Radialis Longusdistal end of humerusBase of 2nd metacarpalWrist extension,abducts hand at wristRadial Nerve C6, C7
Extensor Carpi Radialis BrevisLateral epicondyleBase of 3rd metacarpalWrist extension and abducts hand at wrist.Radial Nerve
Extensor Carpi UlnarisLateral epicondyleBase of 5th metacarpalWrist extension, adducts hand at wristRadial Nerve
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Finger Muscles Innervated by the Radial Nerve

Question Answer Column 3 Column 4 Column 5
Extensor DigitorumLateral epicondyleDistal phalanx of 2 -5 fingersExtends all joints of fingersRadial Nerve C6, C7, C8
Extensor IndicisDistal ulnaDistal phalanx of 2 fingerExtends all joints on 2 fingerRadial Nerve C6, C7, C8
Extensor Digiti MinimiLateral epicondyleDistal phalanx of 5 fingerExtends all joints of 5 fingerRadial Nerve C6, C7,C8
Abductor Pollicis LongusRadius, interosseous membrane, ulnafirst metacarpalAbducts thumbRadial Nerve C6, C7
Extensor Pollicis BrevisPosterior distal radiusProximal phalanx of thumbExtends MP of thumbRadial Nerve C6, C7
Extensor Pollicis LongusPosterior ulna, interosseous membraneDistal phalanx of thumbExtends MP and IP joints of thumbRadial Nerve C6, C7, C8
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Elbow Muscles Innervated by the Medial Nerve

Question Answer Column 3 Column 4 Column 5
Pronator TeresMedial epicondyle of humerus and coronoid process of ulnalateral surface of radiusmedially rotates forearmMedian Nerve
Pronator Quadratusanterior distal end of ulnadistal end of radiusmedially rotates forearmMedian Nerve
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Wrist Muscles Innervated by the Medial Nerve

Question Answer Column 3 Column 4 Column 5
Flexor Carpi RadialisMedial epicondyleBase of 2nd and 3rd metacarpalsWrist flexion, radial deviationMedian Nerve C6, C7
Palmaris LongusMedial epicondylePalmar fasciaAssists wrist fuctionMedian Nerve C6, C7
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Finger Muscles Innervated by the Medial Nerve

Question Answer Column 3 Column 4 Column 5
Flexor Digitorum Superficialismedial epicondyle2nd to 5th middle phalanges2nd to 5th MCP and PIP flexionMedian Nerve
Opponens PollicisTrapezium and flexor retinaculum1st metacarpalOpposes thumb (CMC)Median nerve C6, C7
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Elbow Muscles Innervated by the Ulnar Nerve

Question Answer Column 3 Column 4 Column 5
Flexor Carpi UlnarisMedial epicondyleanterior lateral carpals ( hook of hamate, pisiform, base of 5th metacarpalWrist flexion, ulnar deviationUlnar Nerve
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Finger Muscles Innervated by the Ulnar Nerve

Question Answer Column 3 Column 4 Column 5
Flexor Digitorum Profundusanterior ulnaanterior 2nd to 5th distal phalangesf2nd and 5th MCP and DIP: flexionMedian and Ulnar Nerve
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