Muscles of the Arm Flashcards
Where is the Origin of the Biceps Brachii?
Scapula
Where is the Insertion of the Biceps Brachii?
Top of the radius and bicipital aponeurosis to the medial part of the forearm
What joints does the Biceps Brachii cross?
Shoulder & Elbow
What are the Actions of the Biceps Brachii?
Flexes the elbow, supinates the forearm, assists in flexion of the shoulder joint
Where is the Origin of the Brachialis?
Humerus
Where is the Insertion of the Brachialis?
Ulna
What joint does the Brachialis cross?
Elbow
What is the Action of the Brachialis?
Elbox flexion
What is the Origin of the Brachioradialis?
Laterally at the distal end of the humerus
Where is the Insertion of the Brachioradialis?
Laterally at the distal end of the radius
What joint does the Brachioradialis cross?
Elbow
What are the Actions of the Brachioradialis?
Flexion when the forearm is semi-pronated (as in a drinking action). Assists other flexors
Where is the Origin of the Long Head of the Triceps Brachii?
Scapula just above shoulder joint
Where is the Origin of the other two heads of the Triceps Brachii?
Posterior of the humerus
Where is the Insertion of the Triceps Brachii?
Olecranon process of the Ulna
