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).
This movement is called âscapular elevation.â It uses the muscles Trapezius and Levator Scapulae. Another way to raise your arm is to lift it completely sideways. This movement is called âabduction.â When you do this you can actually only abduct your arm until it is straight sideways. The muscles used to get here were mostly Deltoid and Supraspinatus. Lastly, you can raise your arm by moving it forward in an action called âflexion.â Like abduction, you can only flex your arm until it is straight forward. The muscles used to get here were mostly Coracobrachialis and Biceps Brachii, although there was probably also a little help from Deltoid, and Pectoralis Major.