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.
Movements of the Upper Limb - Page 6 of 18. Adduction of the arm is also called adduction of/at the shoulder. This motion can be divided into two motions: downward rotation of the scapula and true adduction of the arm at the shoulder. Muscles: pectoralis major and minor, latissimus dorsi, teres major, gravity (depending on body position), and even the lowest fibers of the deltoid (making deltoid its own antagonist)