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An Overview of the Muscles in the Back and Shoulders

An Overview of the Muscles in the Back and Shoulders


If your intent is to enhance the size of your shoulders and back then it is very important to initially comprehend their anatomy. By understanding where they lie and what they do, each of them can be targeted with specific workouts. There are 3 significant muscles groups in the shoulders and back including:

 

Deltoid

The deltoid is the main muscle of the shoulder and is consisted of 3 distinct fiber groups called bands-- the anterior, lateral and posterior. On the lower end, all 3 bands cancel on the humerus in the upper arm. However on the upper end, each band has its own connection point: the anterior at the collarbone (clavicle); the lateral at the acromion (suggestion of the clavicle just above the shoulder joint; the posterior at the scapula (shoulder blade).

The deltoid controls virtually all activity of the arm movement in the shoulder joint-- front, back and out to the side.

Trapezius

This complex muscle group inhabits most of the upper back and runs from the back of the neck and extends out to the top of the shoulders then narrows as it continues down the back lastly canceling midway down the spinal column. Its purpose is two-fold: to support the shoulder blades in addition to enabling them to move and turn; to extend the head at the neck.


Rhomboid

The rhomboid is really two separate muscles stacked one on top of the other. On the bottom is the rhomboid major, on top is the rhomboid minor. Both the minor and major connect the shoulder blade to the spine.

Latissimus Dorsi

Running from the humerus down the back and covering midline around the sides, it connects at to the pelvic girdle at the lower end to the pelvis and to back column from midway down to the bottom. It mainly functions to pull your extended arm back to its normal withdrawed position, as in swimming or rowing a boat.

Erector Spinea

The erector spinea is a series of eight different muscles that go up and down the spine. They radiate out from the spinal column and link at different locations. Many terminate up and down the rib cage to hold that anatomy structure in positioning with the spine.

 


 

 

Building the Muscles of the Shoulders and Back

Here are some exercises that target each of these muscles:

Triangular-- presses, consisting of the standing over head and dumbbell shoulder; overhead squat
Trapezius-- seated cable rows
Rhomboid-- dumbbell rows
Latissimus Dorsi-- reverse grip bent over rows, lat pulldowns
Erector Spinea - deadlifts

When someone is viewed from the back there isn't really anything more outstanding than a fully developed back. While there are many more exercise to specify precise areas these will certainly start the development procedure of each major muscle group in the back and shoulders.

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