The Nervous System

Which function is associated with the nervous system?

• Red blood cells creating new blood cells

• Joints helping connect the bones

• Receiving information from the brain

• Food digesting through the stomach

A student waits for the bell to ring so he can go home for the weekend. The list shows different ways the student’s brain processes information during the event, in no particular order.

List the correct order in which the student’s brain receives information, from the first event of the alarm bell ringing to the last event of the student walking out the door.

• Neurons pass information to the spinal cord and the brain.

• Motor neurons send a response to the legs to get up and walk out the door.

• Sensory neurons gather information in the ears.

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NGSS.MS-LS1-8

Breathing is a necessary process for life. It is controlled by the nervous system. You do not have to remind yourself to breathe. Is breathing a voluntary or involuntary action?

• Voluntary, because you have to think about when to take a breath.

• Voluntary, because you have to open your mouth to breathe.

• Involuntary, because the brain stem sends signals to your brain to breathe.

• Involuntary, because the lungs tell the brain when to inflate and deflate.

What are some of the roles of the central nervous system? Select three correct answers.

• Receives information from outside the body through the senses

• Controls heart rate

• Helps fight infection from pathogens

• Reacts to the environment by activating an appropriate response

Anna's nervous system worked to sense, process, and respond to stimuli. Match the processes of the nervous system that Anna uses to capture the butterfly.

• Butterfly

• Motor Neuron

• Eyes, sensory organ

• Sensing the butterfly

• Processes information, sends messages

• Brain

• Send information from eyes to brain

• Neurons

• Receive from brain to make arm move

• Stimulus

Look at the image of a doctor examining a patient. When you visit the doctor for a check-up, the doctor will often check your knee reflexes. Explain the difference between this reflex reaction and a typical nervous system reaction.

• The knee reflex involves neurons and the spinal cord, but not the brain.

• The knee reflex involves both the spinal cord and the brain.

• The knee reflex involves only the brain.

• The knee reflex does not involve the nervous system.

Label the two divisions of the nervous system.

d

e

Peripheral Nervous System

The central and peripheral nervous systems. 

The central nervous system and the skeletal system. 

Central Nervous System

The brain and spinal cord. 

The ​ (a)   ​ (b)   and controls body ​​ (c)  

• nervous system
• coordinates
• functions