Nervous System Part 1

A ​ (a)   is a change in the environment

​ (b)   are nerve cells that carry ​ (c)   throughout the nervous system.

The ​ (d)   is the brain and spinal cord that either pass along impulses or make decisions on what to do and send new impulses.

The ​ (e)   is the way our body reacts

• Stimulus
• Neurones
• Action Potentials
• Central Nervous System
• Response

Put the following in their correct order to describe the process of a VOLUNTARY response action - Stimulus > Response

• Motor Neurones

• Sensory Neurones

• Central Nervous System

• Effector

• Receptor

Match the following

• Made up of brain and spinal cord it recieves the action potential - and creates another

• Motor Neurone

• Transmits action potential from the receptor to the CNS

• Receptor

• Detects stimulus and creates an action potential

• Central Nervous System

• Transmits the second action potential from the CNS to the Effector

• Sensory Neurone

• A muscle or Gland that causes a response

• Effector

Tags

NGSS.MS-LS1-8

_________ actions are where our nervous system goes through the CNS. In these we have a choice of how we respond.

______ ______ are quicker than voluntary responses as they do not go through the brain - They are designed to keep us safe from danger.

The pathway of a reflex action is called a _______ ___

Reorder the following pathway of a reflex arc

• Motor neurone

• Sensory Neurone

• Effector

• Receptor

• Relay neurone

Match the following

• Found in the spinal cord - Transfers action potential from sensory to motor neurones

• Receptor

• Detects stimulus and creates an action potential

• Sensory Neurone

• A muscle or Gland that causes a response

• Relay Neurone

• Transmits the second action potential from the CNS to the Effector

• Motor Neurone

• Transmits action potential from the receptor to the CNS

• Effector

Tags

NGSS.MS-LS1-8

Label up the parts of this reflex arc

a

b

c

d

e

f

Effector

Spinal cord

Motor Neurone

Relay Neurone

Receptor

Sensory Neurone

Explain the pathway of a voluntary response to a stimulus