TOC Dissector Quiz Index Help Upper Extremity Previous Page Next Page Overview
Laboratory 6. Arm
Step 5. Muscles of the Flexor Compartment of the Arm

Previous Image Next Image

Click for Full Screen
Click image to view full screen

Orientation Icon

Examine the muscles of the upper portion of the anterior (flexor) compartment of the arm (Figure 6.5). Identify the coracobrachialis muscle, short head of biceps brachii muscle , long head of biceps brachii muscle , and brachialis muscle [probe].

Retract the biceps brachii muscle and examine the attachments of the brachialis muscle. (An option is to cut the biceps brachii muscle approximately 5 to 10 cm above the elbow and reflect the upper portion of the biceps brachii muscle laterally ]). The brachialis muscle [probe] lies deep to the biceps brachii muscle [held by forceps]. The brachialis muscle originates from the anterior surface of the humerus and intermuscular septum and inserts into the coronoid process and tuberosity of the ulna.

Links and References:
Grant's: 6.43, 6.56 and 6.57
Netter (1ed.): 406 and 408 (2ed.): 402 and 404
Rohen/Yokochi: 391, 396, and 397