Overview of the Arm Bones Anatomy
Description of Bones of the Arm
There are basically three bones that involve the arm and these are:
- Humerus – this is the primary bone of the upper arm. Its proximal end is attached to the shoulder making-up the shoulder joint. There are many muscles that are attached to the humerus such as the biceps, triceps, deltoid, pectoralis major, latissimus dorsi, teres major, and many others.
- Radius – this is the one of the bones of the lower arm. It extends from the elbow to the wrist. The radius is a site for various arteries, veins, and muscles. The muscles are crucial for the movement of the lower arm. Examples of these muscles are pronator teres, extensor primi internodii pollicis, extensor ossis metacarpi pollicis, flexor pollicis longus, flexor digitorum superficialis, and others.
- Ulna – this bone runs parallel to the radius but it is longer and slightly curved. The ulna is also a location of attachment for various muscles, nerves and blood vessels. The muscles that are attached to the ulna are flexor digitorum superficialis muscle, pronator quadratus muscle, pronator teres, supinator muscles, and triceps brachii.
Disorders and Diseases of the Arm Bones Anatomy
Summary of the Anatomy of the Arm Bones
The arm bones anatomy gives us the necessary support and strength to perform our activities of daily living. It is composed of three bones with muscles, ligaments, tendons, and cartilages. Health problems may happen to the arm bones if we are not careful.
This article has addressed some of the most basic and essential information about the bones of the arms. The arm bones anatomy should not be taken for granted, thus understanding its nature is very vital.