Chapter 10, Problem 6CR

Summary Introduction

To determine:

The reason for the greater ratio of motor neurons in the muscle fiber that controls eye movement than in the postural muscles of the leg.

Introduction:

Muscle contraction requires an electrical stimulation from the central nervous system. A motor neuron sends signals to contract at a particular synapse between a neuron and a muscle cell. A motor unit is composed of a motor neuron and its muscle cells.