Part

THE SKULL

NOTE: IN THE LABORATORY, YOU WILL BE EXAMINING SKULLS WHICH ARE FRAGILE. HANDLE THEM CAREFULLY. DO NOT POINT TO THE SKULLS WITH A PEN OR PENCIL. USE YOUR FINGER OR AN ERASER.

The skull is composed of the eight bones of the cranium and the fourteen bones of the face. With exception of the mandible (lower jaw), these bones are joined together with irregular interlocking joints called sutures. In addition to these twenty-two bones, there are three small bones in each ear.

Exercise 9.1

As you read, label the structures in the Figures. After you have located the structure on the drawing, locate it on the skull. If you will proceed with care and diligence, you will be able to learn all of the bones of the cranium and their markings in a relatively short time. Some vocabulary will help you in your investigations. The base of the skull (Figure 93) is the inferior; external surface. The floor of the cranium (Figure 9-4) is the inferior; internal surface.

After you have studied each bone, examine it and its markings on the disarticulated skull.

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.

Get My Free Ebook


Post a comment