Muscles

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Quiz by MedSoc
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Last updated: December 28, 2017
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First submittedDecember 28, 2017
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Average score16.8%
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Answer
Muscles in the anterior compartment of the arm
Two heads
Biceps Brachii
 
Origin of the long head
Supraglenoid tubercle
 
Origin of the short head
Coracoid process
 
Insertion
Radial tuberosity
 
Shoulder abductor
Coracobrachialis
 
Origin
Coracoid process
 
Insertion
Humerus
 
Elbow flexor
Brachialis
 
Origin
Humeral shaft
 
Insertion
Coronoid process of the ulna
 
Innovation
Musculocutaneous
Muscles in the posterior compartment of the arm
 
Triceps brachii
 
Origin of long head
Infraglenoid tubercle
 
Origin of Medial head
Medial aspect of the spiral groove of the humerus
 
Origin of lateral head
Lateral lip of the spiral groove of the humerus
 
Insertion
Olecranon
 
Innovation
Radial nerve
Superficial muscles in anterior compartment of the forearm
 
Pronator teres
 
Origin
Common flexor origin
 
Insertion
Maximum convexity of the radius
 
Innovation
Median nerve
 
 
Flexor carpi radialis
 
Origin
Common flexor origin
 
Insertion
Bases of the second and third metacarpals
 
Innovation
Median nerve
 
 
Palmaris longus
 
Origin
Common flexor origin
 
Insertion
Flexor retinaculum
 
Innovation
Median nerve
 
 
Flexor carpi ulnaris
 
Origin
Common flexor origin
 
Insertion
Pisiform hamate and fifth metacarpal
 
Innovation
Ulnar nerve
Intermediate layer
 
Flexor digitorum superficialis
 
Origin (2)
Common flexor origin
 
 
Radius
 
Insertion
Base of middle phalanges
 
Innovation
Median nerve
Deep layer
 
Flexor digitorum profundus
 
Origin (2)
Ulna
 
 
Interosseous membrane
 
Insertion
Distal phalanges
 
Innovation(2)
Median nerve
 
 
Ulnar nerve
 
 
Flexor pollicis Longus
 
Origin
Distal radius
 
Insertion
Distal phalanx of the thumb
 
Innovation
Median nerve
 
 
Answer
 
 
Pronator quadratus
 
Origin
Anterior surface of distal radius
 
Insertion
Distal ulna
 
Innovation
Median nerve
Superficial posterior compartment of the forearm
 
Anconeus
 
Origin
Lateral epichondyle
 
Insertion
Proximal ulna
 
Innovation
Radial nerve
 
 
Brachioradialis
 
Origin
Lateral suprachondylar ridge
 
Insertion
Radial styloid process
 
Innovation
Radial nerve
 
 
Extensor carpi radialis longus and brevis
 
Origin (2)
Distal lateral suprachondylar ridge of the humerus
 
 
Common Extensor Origin
 
Insertion
Bases of the second and third metacarpal
 
Innovation
Radial nerve
 
 
Extensor digitorum communis
 
Origin
Common extensor origin
 
Insertion
Proximal phalanges
 
Innovation
Radial nerve
 
 
Extensor digiti minimi
 
Origin
Common extensor origin
 
Insertion
Medial aspect of the dorslal expansion of the little finger
 
Innovation
Radial nerve
 
 
Extensor carpi ulnaris
 
Origin
Common extensor origin
 
Insertion
Base of fifth metacarpal
 
Innovation
Radial nerve
Deep muscles
 
Supinator
 
Origin
Supinator crest of the ulna
 
Insertion
Lateral radius
 
Innovation
Radial nerve
 
 
Abductor pollicis longus
 
Origin
Proximal ulna
 
Insertion
Base of the thumb
 
Innovation
Radial nerve
 
 
Extensor pollicis brevis and longus
 
Origin (brevis)
Dorsum of the radius
 
Origin (longus)
Dorsum of the ulna
 
Insertion (brevis)
Proximal phalanx of thumb
 
Insertion (longus)
Terminal phalanx of thumb
 
Innovation
Radial nerve
 
 
Extensor indicis
 
Origin
Posterior ulna
 
Insertion
Index finger dorsal expansion
 
Innovation
Radial nerve
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