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The Anatomy of Shoulder Muscles – Keep Yourself Healthy By Knowing How They're Built

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When it comes to the anatomy of shoulder muscles, knowledge is power. Have you ever felt like your shoulders were on fire? Maybe you struggle being able to move your arm up above your head? Or maybe you’re just curious as to the structure of the shoulder so that you can improve the health of that area of your body. Whatever the reason for wanting to know the anatomy of shoulder muscles, this knowledge will help you be able to better take care of your shoulders and yourself in general.

The Deltoid Muscles

The Anatomy of Shoulder Muscles – Keep Yourself Healthy By Knowing How They're Built

When it comes to the anatomy of shoulder muscles, these are the muscles that many people consider the shoulder muscles. After all, they are the ones you see when you are wearing a sleeveless shirt. There are three different deltoid muscles with different jobs to do, so that’s what we’ll take a look at here.

Anterior Deltoid

The anterior deltoid muscle sits on the front of your shoulder and next to the muscles of your chest. It’s job is to be able to lift your arms, either over your head or straight out in front of you.

Lateral Deltoid

The lateral deltoid muscle sits on the outside of your shoulder and its primary duty is to lift your arms outside the frame of your body, as if you’re stretching to the side for something.

Posterior Deltoid

The posterior deltoid sits at the back of your shoulder and it is responsible for being able to bring your arms backward, as well as to bring your shoulders closer together so that you can grab and lift stuff.

The Rotator Cuff Muscles

The Anatomy of Shoulder Muscles – Keep Yourself Healthy By Knowing How They're Built

When it comes to the anatomy of shoulder muscles, many people don’t realize that there are muscles associated with the rotator cuff. They picture the rotator cuff as the actual joint itself, with the tendons and ligaments associated with the joint, and not the muscles themselves. However, there are four muscles that are a part of the rotator cuff – the teres minor, the supraspinitus, the subscapularis, and the infraspinitus.

These four muscles are integral in keeping your shoulder joint stable and secure. Without these muscles, it would be virtually impossible to utilize your arm for things like lifting. In fact, without proper rotator cuff movement, using your arms successfully for many tasks is nearly impossible. So even though the rotator cuff muscles are generally overlooked when it comes to the anatomy of shoulder muscles, they are actually just as important as their deltoid partners.

Knowing the anatomy of shoulder muscles is important whether you just want to work out and be able to tone and develop your shoulder muscles, whether you want to know how to properly stretch them out, or whether you are just interested in their general purpose and what their duties are. It is through knowing the anatomy of shoulder muscles that we can know what your lifting and movement limits are, which allows us to know when to stop in order to not hurt ourselves and our shoulder muscles.

The Anatomy of Shoulder Muscles – Keep Yourself Healthy By Knowing How They're Built
General Contributor
Janice is a writer from Chicago, IL. She created the "simple living as told by me" newsletter with more than 12,000 subscribers about Living Better and is a founder of Seekyt.

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