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.
Here is a brief overview of the anatomy of the arm muscles. The upper body has tons of muscles including the back, chest, shoulders, rotator cuff, biceps, triceps, and forearms. Back Muscles. The back muscles are the muscles that attach from the spine and ribs to the shoulder blade and/ or to the humerus.