Chapter 9.2, Problem 11BYGO

Summary Introduction

To analyze:

The site of effort, fulcrum, and resistance in the act of the dorsiflexion, the class of lever represented by the foot during the dorsiflexion, and the reason to have a mechanical advantage greater or less than 1.

Introduction:

The skeletal system's bones are connected by joints, or articulations, to form a useful whole that supports the body, allows for efficient movement, and shields the soft tissues. The shoulder, elbow, and knee joints, for example, are amazing examples of biological design since they are self-lubricating, nearly frictionless, and capable of supporting enormous loads, withstanding compression, and performing smooth and accurate motions.