Muscle Anatomy Upper Arm
Your arm especially your forearm and wrist is a common area for this. It has two origins hence the biceps part of its name.
Anatomy Of The Upper Arm Medical Illustration Medivisuals
The muscles of the upper arm are split into anterior and posterior compartments.
Muscle anatomy upper arm. This video identifies all muscles of the upper arm. Overview of the muscles of the upper arm and shoulder blade. Tutorial covers the muscles of the anterior and posterior compartment of the upper arm and talks about nerve supply and actions of these muscles.
Sometimes your muscles bones or tendons put too much pressure on nearby nerves. The posterior compartment of the upper arm is the extensor compartment because it extends the forearm. Deltoid supraspinatus infraspinatus teres minor teres major subscapularis biceps brachii coracobra.
The anterior compartment is the flexor compartment because these muscles flex the forearm. The arm is divided by a fascial layer known as lateral and medial intermuscular septa separating the muscles into two osteofascial compartments. The biceps brachii is on the anterior side of the humerus and is the prime mover agonist responsible for flexing the forearm.
Several of the muscles in your upper arm are connected to your shoulder. The fascia merges with the periosteum outer bone layer of the humerus. There are three muscles on the upper arm that are parallel to the long axis of the humerus the biceps brachii the brachialis and the triceps brachii.
This is known as nerve compression or a pinched nerve. It contains four muscles three in the anterior compartment biceps brachii brachialis coracobrachialis and one in the posterior compartment triceps brachii. This article covers the anatomy of the brachialis muscle including innervation origins insertions and functions.
The anterior and the posterior compartments of the arm. The upper arm is located between the shoulder joint and elbow joint. This article covers the anatomy of the biceps brachii muscle its origins and insertions innervation and functions.
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