Word formation for arm and meaning in medical terms

The term "arm" is derived from the Old English word "earm." In medical terminology, the word "arm" specifically refers to the upper limb, extending from the shoulder region to the elbow joint. It consists of the humerus bone in the upper arm, the radius, and ulna bones in the forearm, as well as various muscles, tendons, ligaments, blood vessels, and nerves. Some related medical terms associated with the arm include:

1. Brachial: Referring to the brachium, which is the upper arm between the shoulder and elbow.
2. Biceps: Referring to the bicep muscle, a large muscle in the upper arm responsible for flexing the elbow joint.
3. Triceps: Referring to the tricep muscle, a three-headed muscle in the upper arm responsible for extending the elbow joint.
4. Radial: Referring to the radius bone in the forearm, which is located on the thumb side.
5. Ulnar: Referring to the ulna bone in the forearm, which is located on the pinky side.
6. Humerus: Referring to the humerus bone in the upper arm, the largest bone located between the shoulder and elbow.
7. Forearm: Referring to the region between the wrist and the elbow, comprising the radius and ulna bones.
8. Flexor: Referring to muscles, tendons, or ligaments that cause movement towards the body's midline, such as those responsible for flexing the arm at the elbow joint.
9. Extensor: Referring to muscles, tendons, or ligaments that cause movement away from the body's midline, such as those responsible for extending the arm at the elbow joint.
10. Radial nerve: Referring to the nerve that originates from the brachial plexus and supplies the back of the arm, forearm, and hand.
11. Ulnar nerve: Referring to the nerve that originates from the brachial plexus and supplies the medial side of the arm, forearm, and hand.

These are just a few examples of word formations related to the arm in medical terms. There are numerous other terms, conditions, and anatomical structures associated with this body part within the medical field.