Deltoid Muscle Anatomy

The deltoid muscle origin attaches to the spine of the scapula and lateral third of the clavicle. Theyre the muscles you see when you roll up your t shirt sleeve or wear a wife beater.

Deltoid Muscle Shoulder Pain And Weakness The Wellness Digest

The deltoid muscle is one of the most important muscles for anyone who exercises.

Deltoid muscle anatomy. Lateral or acromial fibers arise. The clavicular anterior part. The deltoid muscle is a rounded triangular muscle located on the uppermost part of the arm and the top of the shoulder.

As mentioned earlier the deltoid muscle plays a large role in the gross movements. Conditions associated with the deltoid often are related to injury. They are shown in the image below.

Its apex or insertion attaches to the lateral side of the body of the humerus on a point known as the deltoid tuberosity. The anterior or clavicular fibers arise from most of the anterior border and upper surface. Previous studies showed that the insertion of the intramuscular tendons of the deltoid muscle formed three discrete sets of muscle fibers often referred to as heads.

The deltoid is attached by tendons to the skeleton at the clavicle collarbone scapula shoulder blade and humerus upper arm bone. Its apex or insertion attaches to the lateral side of the body of the humerus on a point known as the deltoid tuberosity 2. This is because the deltoids are what you would consider the major muscles of the shoulder anatomy.

The very broad origin of the deltoid actually means that functionally the muscle can be broken down into three separate parts. This u shaped origin point mirrors the insertion point for the trapezius muscle. Its located in an area thats crucial for movement regardless of the sport or exercisetoday we want to explain the anatomy as well as some strengthening exercises and stretches.

Each head of the deltoid has slightly different insertion points. Its base or origin attaches to the spine of the scapula and lateral third of the clavicle. The anterior lateral and posterior deltoid heads.

The deltoid is a triangular muscle. It is named after the greek letter delta which is shaped like an equilateral triangle. Origin insertion function deltoid pain pain in the deltoid muscle can be caused by a contusion caused by a blunt injury muscle strain or tear or due to a nerve injury an injury of the brachial plexus or a spinal nerve compression due to a herniated disc in the neck.

This u shaped origin point mirrors the insertion point for the trapezius muscle. The acromial middle part. Each deltoid muscle has three heads or distinct parts.

The main muscle of the shoulder anatomy. The spinal posterior part.

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