Cocaine normally stays in the system for approximately 48 hours. Although the method of administration and the dose administered affects how long it takes for the body to metabolize this drug. When coca leaves are chewed, absorption time is around 30 minutes.
In this article, we shall look at the anatomy of the muscles of the upper arm â their attachments, innervation and actions. There are three muscles located in the anterior compartment of the upper arm â biceps brachii, coracobrachialis and brachialis. They are all innervated by the musculocutaneous nerve. A good memory aid for this is BBC â biceps, brachialis, coracobrachialis.
The coracobrachialis starts on the front of the shoulder joint and stretches out to the upper arm bone. Conjointly, the these two muscles assist the latissimus dorsi in shoulder adduction during the pull up. This action moves your upper arm bone in, and lifts your body up to the bar. Long Head of the Triceps. The triceps muscle is made up of three heads: lateral, long and medial.