Chapter 17, Problem 17.1.8AYLO

Summary Introduction

To determine:

The concepts of a sensory projection pathway and the first, second and third-order neurons of the pathway

Introduction:

There are three orders of neurons. The first order carry signal from periphery to the spinal cord; the second-order neurons carry signals from the spinal cord to thalamus, and the third-order neurons send the message from the thalamus to cortex.