文档介绍：K. J. Lee: Essential Otolaryngology and Head and Neck Surgery (IIIrd Ed)
Preface
This book is written for the young otolaryngologist who is already acquainted with the
field through recent formal residency training, as well as for other physicians who are
intereseted in concise descriptions of otolaryngologic conditions.
It is not the intent of the authors to write plete review of otolaryngology, much
less a textbook of otolaryngology. It is a discussion of many current concepts in the field. The
materials in this book came from numerous sources. The first edition piled from the
editor's notes for his own Board Examinations, with contributions from authorities in the field.
This revised third edition has been updated, as well as expanded, to make it more useful to
medical students and physicians in other specialties.
It is hoped that the reader will freely refer to the list of references for more in-depth
dissertations.
KJL
Chapter 1: Anatomy of the Ear
General Information
1. The temporal bone forms part of the side and base of the skull. It constitutes two-
thirds of the floor of the middle cranial fossa and one-third of the floor of the posterior fossa.
There are four parts to the temporal bone:
a. Squamosa
b. Mastoid
c. Petrous
d. Tympanic.
2. The following muscles are attached to the mastoid process:
a. Sternocleidomastoid
b. Splenius capitis
c. Longissimus capitis
d. Digastric
e. Anterior, superior, posterir, auricular.
1
(The temporalis muscle attaches to the squamosa portion of the temporal bone and not
to the mastoid process.)
3. The auricle (Fig. 1-1) is made of elastic cartilage, the cartilaginous canal of
fibrocartilage. The cartilaginous canal constitutes one-third of the external auditory canal
(whereas the eustachian tube is two-thirds cartilaginous); the remaining two-third is osseous.
4. The skin over the cartilaginous canal has sebaceous glands, ceruminous glands, and
hair follicles. The skin