overarmsvävnaden

Overarmsvävnaden, often referred to as the upper arm tissue, encompasses the complex network of muscles, bones, nerves, and blood vessels found in the region between the shoulder and the elbow. This area is crucial for a wide range of upper body movements and functions.

The primary muscles in the overarmsvävnaden include the biceps brachii, located on the front of the upper arm, which is responsible for flexing the elbow and supinating the forearm. On the posterior side is the triceps brachii, which extends the elbow. Other muscles like the brachialis and brachioradialis also contribute to elbow flexion and forearm stability.

The bone structure of the upper arm is formed by the humerus, a long bone that articulates with the scapula at the shoulder joint and the radius and ulna at the elbow joint. This skeletal framework provides leverage and support for muscular action.

Innervation of the overarmsvävnaden is primarily supplied by the musculocutaneous nerve (for the biceps and brachialis), the radial nerve (for the triceps and forearm extensors), and the median nerve. These nerves transmit signals from the brain to the muscles, enabling voluntary movement, and carry sensory information back to the brain.

The vascular supply is maintained by the brachial artery, a major artery that branches from the axillary artery, and its accompanying veins. These vessels provide oxygen and nutrients to the tissues and remove waste products. Together, these components form the integrated functional unit of the overarmsvävnaden, essential for everyday activities and athletic performance.