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 axial muscles are attached to the axial bones, and they make up the head, neck, and thorax. The appendicular muscles attach to the appendicular bones, making up the shoulders, hips, arms, and legs. Furthermore, roughly 60 percent of the musculature is axial, leaving 40 percent for the appendages. This lesson will identify and describe the major axial muscles of the head and neck.