The band of tissue, or retinaculum, holds the tendons in place but allows them to slide up and down the arm. The four tendons then continue along the back of the hand and onto each finger. In the finger, the ends of other tendons that start in the …

Learn what are the names of all the different muscles of the upper arm. Their basic & anatomy, location, & functions of the anterior & posterior arm muscles.

2021年8月10日 · What is the anatomy of a tendon? Tendons are mostly collagen, one of the most abundant proteins in your body. Tendons also contain blood vessels and nerves. Collagen fibers are flexible, strong and resistant to damage. A tendon’s structure is similar to a fiberoptic cable or a rope, with small collagen fibers arranged in bundles.

2024年1月13日 · Arm anatomy consists of 3 main parts: the upper arm, forearm, and hand. It spans from the shoulder to the fingers and contains 30 bones, nerves, blood vessels, and muscles. The brachial plexus supply the arm’s nerves. Starting at the shoulder, which is a ball-and-saucer joint.

2023年10月29日 · The upper arm is located between the shoulder joint and elbow joint. It contains four muscles - three in the anterior compartment (biceps brachii, brachialis, coracobrachialis), and one in the posterior compartment (triceps brachii).

Each muscle has two tendons, one proximally and one distally. The point at which the tendon forms attachment to the muscle is also known as the myotendinous junction (MTJ) and the point at which it attaches to the bone is known as the osteotendinous junction (OTJ).

2024年5月1日 · Examples include the retinacula of the flexor and extensor tendons in the hand and foot at the wrist and instep levels (see Image. Forearm Extensor Muscles and Tendons). Fibrous sheaths, or retinacula, serve as channels for …

2024年8月20日 · Arm muscle anatomy refers to the location and function of the muscles of the arms. These muscles attach to the shoulder blade, upper arm bone (humerus), forearm bones (radius and ulna), wrist, fingers, and thumbs. The arm muscles control movement at the elbow, forearm, wrist, and fingers.

2022年1月26日 · Some muscles sit deep inside of your arm. Others are close to the surface of your skin, and you can easily see their outline when you contract (flex) your muscle. Tendons (soft tissues) attach your muscles to bones in your arm and shoulder. Arm muscle strains (tearing or stretching a muscle too far) are common injuries.

2023年11月16日 · Origin, insertion, innervation and functions of the biceps brachii muscle. The arm muscles are a group of five muscles located in the region between the shoulder and elbow joints. They are divided into two distinct compartments of the arm. The anterior (flexor) compartment contains the biceps brachii, coracobrachialis and brachialis muscles.