Human Reflex Action

This scene takes the form of a cave where a cave person lived and discovers how to make fire. Yet does not now the effects of touching the fire. The anatomy illustrates and models the pathway taken by an nerve impulse triggered by a stimulus, the fire. Here students can learn how reflex actions work to keep us from harm.

# Learning objectives

1: Be able to describe the typical pathway of an impulse during a response to a stimulus{.info}

2: Be able to describe a reflex action and compare it to a normal action{.info}

3: Be able to explain the purpose of a reflex action{.info}

# Changes Everywhere{.objective .objective1}

In this section, the nature of a response to a stimulus will be described. Stimuli are changes in the environment that can lead to a response, either because we are drawn to the stimulus or we want to avoid it. The nervous system is designed to detect stimuli using receptors, and relay the signals to the brain so that an action can be determined.

# What Pathway does an Impulse Take to Generate a response?{.objective .objective2}

In this section a reflex action will be described and compared to a normal action. Reflexes need to lead to a faster response. The comparison should allow students to understand how the brain is bypassed in a reflex action to speed up a response.

# What Purpose does a Reflex Action Have?{.objective .objective3}

In this section, the purpose of reflexes as a means of avoiding harm will be outlined. Many external factors, like fire can be hazardous and cause harm. Responding to the quickly will allow us to avoid being harmed as well as learn to avoid dangerous situations.