Functional Anatomy of Major Muscles - Arm Musculature

Question 1

biceps brachii

Answer 1

Isolated function: concentric- elbow flexion, supination the radioulnar joint, shoulder flexion
integrated function: eccentric-elbow extension, pronation of the radioulnar joint, shoulder extension
isometric-stabilizes the elbow and shoulder girdle

Question 2

triceps brachii

Answer 2

Isolated function: concentric-elbow extension, shoulder extension
integrated function: eccentric-elbow flexion, shoulder flexion
isometric-stabilizes the elbow and shoulder girdle

Question 3

brachialis

Answer 3

Isolated function: concentric-flexes elbow
integrated function: eccentric-elbow extension
isometric-stabilizes the elbow

Question 4

anconeus

Answer 4

Isolated function: concentric-extends elbow
integrated function: eccentric-elbow flexion
isometric-stabilizes the elbow

Question 5

Brachioradialis

Answer 5

Isolated function: concentrate-flexes elbow
integrated function: eccentric-elbow extension
isometric-stabilizes the elbow

Question 6

Pronator quadratus

Answer 6

isolated function: Concentric- pronates forearm
integrated function: eccentric-forearm supination
isometric-stabilizes the distal radioulnar joint

Question 7

pronator teres

Answer 7

isolated function: Concentric- pronates forearm
integrated function: eccentric-forearm supination
isometric-stabilizes the proximal radioulnar joint and elbow

Question 8

Supinator

Answer 8

Isolated function: concentric-supinates forearm
integrated function: eccentric-forearm pronation
isometric-stabilizes proximal radioulnar joint and elbow