Anatomy of Upper limb

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Anatomy of the upper limb[edit]

In Human anatomy, the upper limb (also called the upper extremity) refers to the region distal to the deltoid. In humans it is commonly called the arm.

Upper limbs are connected to the external part of the neck's inferior part. The Upper limbs are linked to the trunk by muscles and a small joint between the clavicle and the sternum (sternoclavicular joint).

Considering the forming bones and the main joints positions; it will be divided into four main parts:

The Shoulder is the region connected to trunk and the upper limb.

The Arm is consists of the upper limb, the forearm, and the elbow joint.

The Forearm is between elbow joint and wrist joint.

The Hand is in distal position to the wrist joint.

The axillary and cubital cavities, and the Carpal tunnel are the most important intermediate regions of the arm


The following bones are considered to be part of the upper limb: Clavicle - the only bone that directly articulates with the trunk