**5.4 Muscles of the ventral cervical region and tongue**

• M. sternocleidomastoideus:

The lateral portion is the m. cleidooccipitalis that arises from the clavicle and inserts into the nuchal line of the skull (**Figure 27**).

The medial portion is the m. sternomastoideus that runs from the manubrium of the sternum to the mastoid process of the skull (**Figure 27**).

In between both muscles, the m. cleidomastoideus can be seen. It runs from the medial side of the clavicle to the mastoid process (**Figure 27**).


*Anatomy of the Rhesus Monkey (*Macaca mulatta*): The Essentials for the Biomedical Researcher DOI: http://dx.doi.org/10.5772/intechopen.99067*

