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 Adductors are a group of muscles that include: the Adductor Magnus, Longus and Brevis, the Gracilis and the Pectineus. The Adductor Hiatus (not pictured) is simply a space in the attachment of the Adductor Magnus. The Adductors originate on the pelvic bone and attach at intervals along the length of the femur. This interval attachment provides the most power and stability for the hip joint and the femur. The Sartorius muscle is also included in this diagram though it's not technically an adductor-it acts at the hip to internally rotate the femur (a movement like you're crossing one leg over the other).