An Endoscopic Tour Endoscopic Examination Anatomical Variations and Specific Conditions

We need to be able to recognize the wide range of structural variations in the bony architecture of the paranasal sinuses and to distinguish normal from diseased mucosa. It helps to have a system for looking for these in order to build up as complete a picture of the patient's situation as possible (Fig. 6.1). In this section we will discuss various techniques, devices, and particular problems.

Paranasal Sinus Aneurysm
Fig. 6.1 Three steps to examine the nasal airway and conduits of the paranasal sinuses.
Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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