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.
Arm Abduction. Abduction of the arm is also called abduction of/at the shoulder. This motion actually can be divided into two motions: true abduction of the arm at the shoulder and upward rotation of the scapula. Muscles: supraspinatus (initiates abduction - first 15 degrees), deltoid (up to 90 degrees), trapezius and serratus anterior (scapular rotation, for abduction beyond 90 degrees).
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.