Nervous System Explained
Important Definitions
Facts About the Nervous System
100

How many neurons does the brain have?

what is about 100 billion in the brain

100

The central nervous system consists of these two main parts.

What are the brain and spinal cord?

100

What are the four types of neurons?

 What is sensory, motor, receptors & interneurons

200

This prepares the body to act by increasing heart rate, respiration, and blood pressure and slowing activity in the digestive tract.  

What is sympathetic nervous system

200

This brain disorder gradually destroys memory, thinking skills, and eventually the ability to perform everyday tasks.

What is Alzheimer’s disease?

200

The somatic nervous system carries messages between these two components

What are the central nervous system (CNS) and the body?

300

This condition is a temporary weakness or paralysis of the muscles on one side of the face.

What is Bell’s palsy?

300

What controls blood glucose concentration, body temperature, and water levels?  

what is homeostasis

300

A mass of abnormal cells growing in the brain or skull is called this.

What is a brain tumor?

400

The basic structural unit of the nervous system.

What is the neuron (or nerve cell)?

400

This system contains the sympathetic and parasympathetic divisions to control involuntary body functions.

What is the autonomic nervous system?

400

This prepares the body to act by increasing heart rate, respiration, and blood pressure and slowing activity in the digestive tract.  

What is sympathetic nervous system

500

This system allows the body to respond and adapt to changes inside and outside the body.

What is the nervous system?

500

 This maintains constant optimal conditions to ensure enzymes are working effectively and cells are functioning properly.

 What is Homeostasis

500

This rare neurological disorder occurs when the immune system attacks the peripheral nervous system

What is Guillain-Barré syndrome

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