The sternocleidomastoid, which is also known as the sternomastoid and as the sternocleidomastoideus, is a long muscle in the neck that rotates the neck and flex the head.
The points of origin and insertion, and the actions of the sternocleidomastoid muscle:
|Insertion:||Mastoid process, which is a conical prominence projecting from the undersurface of the mastoid portion of the temporal bone|
Extreme whiplash movements can cause damage to the sternocleidomastoid among other muscles.
This is one of the muscles of the head, neck, and face that is included on the syllabus of many courses in Indian Head Massage. As this is a popular therapy we have included several pages that may be of interest to students of Indian Head Massage. See, for example, the page about skeletal structures of the head and neck.
To view the location of the sternocleidomastoid muscle see the page about anterior muscles.
More about Muscles:
- The structure of muscle tissue and the structure of muscle cells
- Labelled diagrams of the muscles in different parts of the body including anterior muscles, posterior muscles and facial muscles
- Various other pages about e.g. types of muscle contractions, movements at joints, muscular disorders and related topics such as books about sports medicine
- Anterior Muscles
- Posterior Muscles
- Facial Muscles
- Muscle Terminology (Definitions)
- 1. Structure of Muscle
- 2. Structure of Muscle Cells
- 3. Muscle Filaments
- 4. Sliding Filament Theory
- 5. Neuromuscular Junction
- 6. Actions at Neuromuscular Junction
- Types of Muscle Contractions
- Muscular Disorders
- Effects of exercise on muscles