Photographic Illustrations of the Anatomy of the Human Ear

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Excerpt from Photographic Illustrations of the Anatomy of the Human Ear: Together With Pathological Conditions of the Drum Membrane and Descriptive TextIllustration No. 1. Represents the outer surface of the right Temporal bone of an adult. The well-developed Mastoid process shows numerous roughnesses - the foramina for nutrient vessels, the points of insertion of muscles, etc. Behind and below it the Digastric groove may be seen, in front of it is the External Auditory Meatus. The formation of this bony tube by the conjunction of the anterior wall of the Mastoid, the root of the Zygomatic process and the scroll of the Tympanic bone or Auditory process is readily recognizable. The proximity of the shallow Glenoid fossa of the Mandibular articulation, shows the close relation of this joint to the ear, and how its movements affect the cartilaginous portion of the Meatus. The Styloid process is of small size and' has been broken off quite short, but its position and the ensheathing of its base by the Tympanic bone is none the less distinct. The stylo-mastoid foramen, through which the Facial nerve makes its exit from the skull, is close beside it, but hidden from view.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.