Anatom3DSternocleidomastoid
Musculus sternocleidomastoideus · Zdvihač hlavy (kývač)
Muscles
Looks like
A strap muscle on each side of the neck, running from behind the ear to the breastbone and collarbone.
What it does
Turns the head to the opposite side and bends the neck forward.
Keeping it well
Tight in babies with a head tilt (torticollis), helped by gentle stretching; a lump along its front edge in adults needs checking.