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.
The muscles that provide the movement for the shoulder and upper arm include the anterior muscles in the front, the posterior muscles in the back, and the shoulder muscles that are sort of in between. Pectoralis major: This muscle has two heads, or sections of muscle tissue, and covers much of the front of the thoracic cage.
Elbow Muscles and Ligaments. The elbow is a joint connecting the lower arm, or forearm, with the upper arm. The elbow joint interconnects the radius and ulna bones of the lower arm with the humerus bone of the upper arm.This connection is formed through a series of muscles, ligaments and tendons. The upper arm muscles pass over the elbow joint and connect to bones of the forearm.Similarly, muscles of the forearm cross the elbow joint and attached to the humerus bone of the upper arm.his connection is formed through a series of muscles, ligaments and tendons. The upper arm muscles pass over the elbow joint and connect to bones of the forearm. Similarly, muscles of the forearm cross the elbow joint and attached to the humerus bone of the upper arm.