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 8 On the Ossicles That Enter Upon the Construction of the Organ of Hearing

The cavity made for the organ of hearing, and the foramina extending into it

When I describe the construction of the organ of hearing, you will hear that a large and winding cavity is carved in the temporal bone leading via a twisted foramen [meatus acusticus internus] into the brain cavity of the skull. And by another much larger and less twisted foramen [meatus acusticus externus], it extends toward the outer surface of the head, to the ear. Then from this cavity two other foramina are extended, of which one will be called the blind foramen [canalis facialis] the other could also be so called, but unlike the former it is twisted and narrow, and provides a path [sulcus sinus petrosi superioris] to the vein (n in chapter 14, book 3) coming in to nourish the organ of hearing. These foramina (a, a, b, c in chapter 12) will be described with their own figure legend in the twelfth chapter, but now we mention only those we consider relevant to an account of the ossicles.



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 8 On the Ossicles That Enter Upon the Construction of the Organ of Hearing