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).
Several muscles surround the elbow, making it possible for you to move your arm. The two main muscles responsible for bending and straightening the arm at the elbow are: triceps, located at the back of the arm; biceps, located at the front of the arm; The main muscles of the elbow involved in wrist and finger movement are: flexors, which attach to the inside of the elbow and enable you to bend your wrists and fingers