Deltoid Muscle : Base Of Upper Limb :
In human anatomy, the deltoid muscle is the muscle forming the rounded contour of the shoulder.
Anatomically, it appears to be made up of three distinct sets of fibers though electromyography suggests that it consists of at least seven groups that can be independently coordinated by the central nervous system.
It was previously called the deltoideus (plural deltoidei) and the name is still used by some anatomists. It is called so because it is in the shape of the Greek letter Delta (triangle). It is also known as the common shoulder muscle, particularly in lower animals (e.g., in domestic cats). Deltoid is also further shortened in slang as "delt".
A study of 30 shoulders revealed an average mass of 191.9 grams (6.77 oz) (range 84 grams (3.0 oz)–366 grams (12.9 oz)) in humans.
Origin Of Deltoid Muscle :
Anterior head: anterior surface of the lateral clavicle.
Middle head : acromion process and spine of the scapula.
Insertion of Deltoid Muscle:
(Distal attachments)
Deltoid tuberosity of the humerus.
Nerve supply
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| Deltoid Muscle |
In human anatomy, the deltoid muscle is the muscle forming the rounded contour of the shoulder.
Anatomically, it appears to be made up of three distinct sets of fibers though electromyography suggests that it consists of at least seven groups that can be independently coordinated by the central nervous system.
It was previously called the deltoideus (plural deltoidei) and the name is still used by some anatomists. It is called so because it is in the shape of the Greek letter Delta (triangle). It is also known as the common shoulder muscle, particularly in lower animals (e.g., in domestic cats). Deltoid is also further shortened in slang as "delt".
A study of 30 shoulders revealed an average mass of 191.9 grams (6.77 oz) (range 84 grams (3.0 oz)–366 grams (12.9 oz)) in humans.
Origin Of Deltoid Muscle :
Anterior head: anterior surface of the lateral clavicle.
Middle head : acromion process and spine of the scapula.
Insertion of Deltoid Muscle:
(Distal attachments)
Deltoid tuberosity of the humerus.
Nerve supply
a. Nerve: Axillary nerve
b. Nerve roots: C5 and C6
Actions of Deltoid Muscle
Anterior head:
a. Flexes the arm at the shoulder.
b. Medially rotates the arm at the shoulder.
Middle head:
a. Abducts the arm at the shoulder.
Abduction Of Sholder ( Middle Fiber )
Flextion Of Sholder ( Anterior Fiber )
Extension Of Sholder ( Posterior Fiber )
Strengthening Exercise Of Deltoid Muscle :
Anterior Fiber Strengthening with Help of Dumbbell's Shoulder Flexion Exercise should be performed.
First Day 5 Repetition and Gradually increase repetition like 2nd 10 ,3rd 12 repetition and go on.
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| Anterior Fibre Muscle Strengthening Exercise |
First Day 5 Repetition and Gradually increase repetition like 2nd 10 ,3rd 12 repetition and go on.
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| Middle Fibre Strengthening Exercise |
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| Heavy Gym Exercise Of Deltoid- Middle Fibre |
Deltoid Muscle Workout Video:
Other Related Muscle Post:
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| Quadriceps Muscle Detail |
I also want to develop my Deltoid muscle!
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