Muscles of the Arm (OIA) Questions and Answers
Supinator (OIA)
O: lateral epicondyle of humerus
I: lateral proximal radial shaft
A: supinate forearm
Pronator Teres (OIA)
O: head of humerous
I: middle and lateral surface of radius
A: pronate forearm and assist in elbow flexion
B...
Muscles of the Arm (OIA) Questions and
Answers
Supinator (OIA) - answer O: lateral epicondyle of humerus
I: lateral proximal radial shaft
A: supinate forearm
Pronator Teres (OIA) - answer O: head of humerous
I: middle and lateral surface of radius
A: pronate forearm and assist in elbow flexion
Biceps Brachii (O long and short head,IA) - answer O: short head- apex of coracoid
process of scapula
long head- supraglenoid tubracle of scapula
I: Radial tuberosity
A: shoulder flexion
Brachialis (OIA) - answer O: distal, anterior surface of humerus
I: ulna tuberosity and coracoid process of ulna
A: flexion of the elbow
Brachioradialis (OIA) - answer O: lateral supracondylar ridge of humerus
I: lateral side of base of styloid process of radius
A: flexion of the elbow
Triceps Brachii (O for each head IA) - answer O: long head- infraglenoid tuberosity of
the scapula
lateral head- posterior and lateral surface of the humerus
medial head- lower posterior surface of the humerus
I: posterior surface of the olecranon
A: extension of the elbow
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