Synovial Joints

Objectives

When you have completed this section, you should be able to

  • describe the anatomy of a synovial joint and its associated structures;
  • describe the six types of synovial joints;
  • list and demonstrate the types of movements that occur at diarthroses;
  • discuss the factors that affect the range of motion of a joint;
  • give an anatomical example of a first-, second-, and third-class lever and explain why each is classified as it is; and
  • relate the concept of mechanical advantage to the power and speed of joint action.

The rest of this chapter is concerned with synovial joints. A synovial (sih-NO-vee-ul) joint is one in which two bones are separated by a space that contains a slippery lubricant called synovial fluid. Most synovial joints, including the jaw, elbow, hip, and knee joints, are freely movable. These are not only the most common and familiar joints in the body, but they are also the most structurally complex and the most likely to develop uncomfortable and crippling dysfunctions.

Saladin: Anatomy & I 9. Joints I Text I I © The McGraw-Hill

Physiology: The Unity of Companies, 2003 Form and Function, Third Edition

Chapter 9 Joints 299

Was this article helpful?

0 0
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