Know your muscles - Shoulders and arms

Training specific body parts can only be truly effective if you recognize and understand the role of each muscle. This article examines the muscles that make up the shoulders and arms.


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muscles, shoulders and arms


Getting familiar with the muscles that make up your body has more benefits than just allowing you to chat with your training partners. The more you know about the muscles you are working, the better you will be able to judge what is needed to improve. In this article we will learn about the muscles that make up the shoulders and arms.

The shoulders and arms work together, but they require significantly different exercises to make them bigger and stronger. The main muscles found in these areas are:

1. Deltoid – these are three separate segments that cover the shoulder and run a few inches down the arm. The anterior deltoid lifts the arm forward. The middle deltoid raises the arm to the side. The posterior deltoid pulls the arm backwards.

2. Rotators – these are small muscles in the rotator cuff that control small movements of the arm. Consisting of an internal rotator, an external rotator and a supraspinatus muscle , they are used in lifting and throwing actions.

3. Biceps brachii – the biceps covers the front part of the forearm and consists of a long head and a short head. The long head crosses the shoulder joint and works with the anterior deltoid to raise the arm forward.

4. Triceps brachii – the triceps covers the back of the arm and is made up of three sections – the long head, the lateral head and the medial head. The role of the triceps is to straighten the arm at the elbow.

5. The gill muscle – this muscle lies between the arm bone and the biceps. It helps the bicep bend at the elbow when the palm is facing the side.

6. Forearm Muscles – the forearms are made up of many small muscles called flexors and extensors. The largest muscle in the forearm is the brachioradialis muscle which is found near the elbow.
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