Chapter 14.4, Problem 1LO

Summary Introduction

To describe:

The series of events during a spinal reflex.

Introduction:

When a stimuli, passes from the effector organ to the spinal cord is called as spinal reflex. The defected muscle passes the sensory stimulus which triggers the nerve. This nerve stimulus flows into spinal cord and through the interneuron it passes to the motor fiber, which triggers the muscle contraction. The entire process occurs involuntary, without the involvement of brain. This process is known as reflex action.

Pictorial representation:

Fig. 1: The events of spinal reflex.