What does deltoid mean in anatomy?

(Entry 1 of 2) : a large triangular muscle that covers the shoulder joint and serves to raise the arm laterally.

What does deltoid mean?

Description. Deltoid. The Deltoid muscle is a large triangular shaped muscle which lies over the glenohumeral joint and which gives the shoulder its rounded contour. It is named after the Greek letter delta, which is shaped like an equilateral triangle.

What is the deltoid area of the arm?

The deltoid muscle is a rounded, triangular muscle located on the uppermost part of the arm and the top of the shoulder. It is named after the Greek letter delta, which is shaped like an equilateral triangle.

What are the 3 deltoid?

The deltoid muscle is the main muscle of the shoulder. It consists of three muscle heads: the anterior deltoid, lateral deltoid, and posterior deltoid.

Does the deltoid adduct the arm?

When all its fibers contract simultaneously, the deltoid is the prime mover of arm abduction along the frontal plane. This makes the deltoid an antagonist muscle of the pectoralis major and latissimus dorsi during arm adduction. The anterior fibers assist the pectoralis major to flex the shoulder.

Which deltoid head is largest?

Author Michel Gundil found that, “bodybuilders have front delts that are on average five times bigger than sedentary people. Their lateral delts are three times bigger, and their rear delts are only 10 to 15 percent bigger.

Where do you inject deltoid muscle?

Injection site Give in the central and thickest portion of the deltoid muscle – above the level of the armpit and approximately 2–3 fingerbreadths (~2″) below the acromion process. See the diagram. To avoid causing an injury, do not inject too high (near the acromion process) or too low.

What does a deltoid tear feel like?

Deltoid injuries include strains and tears of the muscle. You may feel only slight twinges of pain at the back of your shoulder or may not be able to lift your arm, depending on the grade of your injury. Proper rehabilitation for a deltoid injury can help you retain your range of motion and strength.

How long does it take for a deltoid muscle to heal?

If you have a minor strain, recovery may take one to two weeks. An injury with partial tearing may take four to six weeks. A serious tear can take up to four months to heal. Rest, ice, and heat are your best first steps for recovery.

What does the term deltoid mean?

Definition of deltoid. (Entry 1 of 2) : a large triangular muscle that covers the shoulder joint and serves to raise the arm laterally. deltoid. adjective. Definition of deltoid (Entry 2 of 2) 1 : having a triangular shape a deltoid leaf — see leaf illustration. 2 : relating to, associated with, or supplying the deltoid.

What does deltoid mean in medical dictionary?

Medical Definition of deltoid. (Entry 1 of 2) : a large triangular muscle that covers the shoulder joint, serves to raise the arm laterally, arises from the upper anterior part of the outer third of the clavicle and from the acromion and spine of the scapula , and is inserted into the outer side of the middle of the shaft of the humerus.

What is another word for deltoid?

It is also known as the common shoulder muscle, particularly in lower animals. Deltoid is also further shortened in slang as “delt”. The plural forms of all three incarnations are deltoidei, deltoids and delts.

What term best describes the deltoid?

The deltoid muscle is the muscle forming the rounded contour of the human shoulder. It is also known as the ‘common shoulder muscle’, particularly in other animals such as the domestic cat.