Chapter 16, Problem 14DYB

Summary Introduction

To describe:

The pathway by which stimulus related to smell travel from the cavity of the nose to the brain.

Concept introduction:

Stimulus is any change in the environment that generates a response in any organism. And the property of responding to any stimulus is called irritability. The response to any stimulus id governed either by spinal cord or by the brain. It is so because these are the main controller of every mechanism in all vertebrates. The unit of the nervous system is a neuron and group of neurons form a nerve. There are different nerves that arise from different organs.