Three Main Vital Groups Of The Back Muscles

Three Main Vital Groups Of The Back Muscles

Do you know Back Muscles support the spine via a mixed group? It not only holds you upright but also allows the body to twist, move, and bend. From time to time, the muscles need exercise. The muscles also have to engage in everyday activities. Back exercises and physical therapies will treat the spine well. In this case, it will strengthen muscles to support the spine and eliminate surgery.

Three Main Vital Groups Of The Back Muscles
Three Main Vital Groups Of The Back Muscles

Back Muscles Parts

The back muscles part into three main groups :

  • Intermediate- That connects with the thoracic cage.
  • Superficial- Combines with shoulder movements.
  • Deep- Which connects with the vertebral column motion.

In short, it is known as the intrinsic system. On the other hand, intermediate and superficial known as extrinsic muscles. Superficial back again include functions, innervations, and attachments as anatomy.

In reality, underneath the skin, muscular systems are placed. It attaches shoulder bones like humerus, scapula, and clavicle. Not only it connects bones but also is responsible for upper limb motion. Also, its groups parts into levator scapulae, latissimus dorsi, and rhomboids. Further, superficial holds latissimus dorsi, and trapezius. On the other hand, levator scapulae and rhomboids cover trapezius.

Back Muscles Groups:


Although this may be true, it has a triangular, flat, and large muscle. It attaches ligaments, skulls, and processes. Likewise, it connects a scapula spine, clavicle, and acromion.

Besides this, an accessory nerve has motor innervation functioning. It will not only receive fibers from C-4 but also C-3 spinal nerves.

At the same time, the action of it is to rotate the arm. Not only the Scapula will retract, but also lower fibers will get pulled.

Latissimus Dorsi:

As can be seen, latissimus dorsi has origin from the lower back. It has not only a wide origin but also processes. Also, the fibers cover tendons to the humerus. The key actions are rotation, extending, and move the upper limb.

Levator Scapulae:

Likewise, it is a strap-like muscle. It will start in the neck and attach the scapula. Hence, the necessary attachments originate vertebrae and medial border. The first thing to remember is elevating the scapula is a crucial action.


Further, major and minor are two rhomboid. In general, it is placed superior. On the one hand, major attaches process vertebrae and inferior angle. On the other side, the minor will attach the C-7-T-11 vertebrae. Also, it connects the spine scapula and medial scapula border. Major and minor both have rotation and retract scapula action.

Three Main Vital Groups Of The Back Muscles
Three Main Vital Groups Of The Back Muscles

Back Muscles Deep Group:

The intrinsic extends the pelvis and has segmented branches. It not only consists of rotators and extensors to the neck but also to head. In short, they are branched through deep cervical, lumbar, subcostal, etc.

Some muscular system goes laterally and upwards. In the first place, they are termed as a large muscular system.

Back Muscles Capitis:

To sum up, it has an origin in spinous processes and ligament nuchae. The critical function is to rotate and draw the head.


In general, it has origin till TV-1. In short, there is three vital back group. On the other hand, it plays a role in better spine health.

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