Sternocleidomastoid

sterno -- 2016
Sternocleidomastoid

Pictured above is the sternocleidomastoid (say that one three times real fast). It is a muscle on the front & side of your neck that attaches to the sternum, collar bone, and the back of your skull just behind your ear. It has a lot of influence on proper neck posture.

The muscles are layered, showing how some of the muscles are covered by the others. All of the muscles are see-through so that you can appreciate the location and size of each muscle relative to the others.

Click here for a list of all the muscles.

Individual upper back & neck muscles you might be interested in: (any inactive links will be live soon)

Muscles that attach to the head (mastoid or other skull bone) and the neck (cervical vertebrae) and/or head & torso (thoracic vertebrae and/or ribs)

  1. Sternocleidomastoid
  2. Trapezius
  3. Splenius Capitus
  4. Longissimus Capitus
  5. Semispinalis Capitus

Muscles that attach to the neck (cervical vertebrae) and another area of the spine (cervical or thoracic vertebrae) and/or ribs

  1. Anterior Scalene
  2. Medial Scalene
  3. Posterior Scalene
  4. Splenius Cervicis
  5. Semispinalis Cervicis

Muscles that attach to the head or neck & the shoulder blade (scapula)

  1. Trapezius
  2. Levator Scapulae

Good luck working out those tight knots.

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