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.
Below the infraspinatus is the teres minor, and below the teres minor is the teres major. Both the teres minor and teres major commence on the shoulder blade and stretch out to the upper arm bone. Together these three muscles assist the latissimus dorsi in shoulders adduction during the pull up. This is the action that moves your upper arm bone into your body, lifting your body up to the bar.