Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 6 On the Eight Bones of the Head and the Sutures Connecting Them

Mammillary processes

These bones would not wrongly be called circular, did not a part of them project beyond the circle. This part is closest to the lambdoid suture and puts forth the mammillary process [processus mastoideus] of the head (k in figures 3, 4, 5), one on each of the temporal bones. It protrudes not only to offer an opportune insertion for muscles [m. sternocleidomastoideus] from the pectoral bone and the clavicles that move the head; it is also an apt seat for the organ of hearing, which requires a great cavity.



Book One -- The things that sustain and support the entire body, and what braces and attaches them all. [the bones and the ligaments that interconnect them] | Chapter 6 On the Eight Bones of the Head and the Sutures Connecting Them