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 action occurs as you then move your arms out to the side. Latissimus dorsi and posterior fibers of deltoid. Horizontal adduction. For the start position, lift your arms out to the side. The actions occurs as you then move your arms in front of you. Pectoralis major and anterior fibers of deltoid. Elbow and Wrist Joints. The elbow joint consists of the humerus bone and the radius and ulna bones.