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.
The coracobrachialis starts on the front of the shoulder joint and stretches out to the upper arm bone. Conjointly, the these two muscles assist the latissimus dorsi in shoulder adduction during the pull up. This action moves your upper arm bone in, and lifts your body up to the bar. Long Head of the Triceps. The triceps muscle is made up of three heads: lateral, long and medial.