Image: anatomia-cuerpo-humano.blogspot.com
Have you ever been asked the name of the arm bones and you have not been able to answer? It is normal that we forget to mention a bone. The arm skeleton is made up of three parts: arm, forearm and hand. And the arm, specifically, is made up of the ulna, radius and humerus. In unComote we offer a list with the arm bones so you know what they are like and where they are.
Arm bones: Humerus
The humerus is located in the arm. It’s a fairly long bone. Different muscles are inserted into it to develop strength. The arm and forearm are joined by the elbow joint. In this image you will see the name of each part that makes up the humerus.
Arm bones: Radius
The bones of the forearm begin with the elbow joint and flow into the bones of the hand through the wrist. The radio is located on the outside of the forearm. It is located outside the ulna with the cutting edge of the bone inward. The most voluminous extremity downwards and with the slides of this extremity to the back.
Arm bones: Ulna
It is a long hole, parallel to the radius. The ulna is on the inside of the arm; articulates superiorly with the humerus and radius and inferiorly with the radius and carpal bones. Together with the radius, the ulna forms the elements that give bony support to the forearm.
Elbow bone
When we speak of “elbow” we mean the joint that joins the arm with the forearm, that is, the upper bones with the lower ones. This area is called the “radio-cubial humerus” and is divided, in turn, into two distinct parts:
- Humeral-radial joint
- Humero-ulnar joint
In addition to this, you should know that the ulna and the radius also create a joint near the elbow and is known by the name of “proximal radio-ulnar” that allows the bones to connect with each other by a network of ligaments that achieve optimal fixation. . Within this structure is the synovial fluid, a viscous fluid that is found in the joints and allows optimal mobility.
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