Chapter 9, Problem A.27RQ

(a)

Summary Introduction

To describe: The process of motor-unit recruitment in controlling whole muscle tension.

Introduction: In an adult, 40 to 50% body weight is contributed by skeletal muscles. The primary cells that form a skeletal muscle is the skeletal muscle fibers. They perform functions such as body movement, posture maintenance, support and protection, heat production, and regulating elimination of materials.

(b)

Summary Introduction

To describe: The process of motor-unit recruitment in controlling velocity of whole-muscle shortening.