Nervous System Basics
The main control center of your body.
What is the brain?
Neurons are also called ___ cells because they carry messages in the body.
What are nerve cells?
This part of the brain help's us understand language.
What is the temporal lobe.
PNS stands for...
PERIPHERAL NERVOUS SYSTEM
The body is made up about this many cells.
What is trillions?
It is the size of a fist.
What is the brain?
The long part of a neuron that carries messages is called this.
What is an axon?
The brain is protected by this strong, bony structure.
What is the skull?
These allow the brain to control our muscles
What are motor neurons?
The brain is made up of about this many neurons.
What is 100 billion?
The CNS is made of 2 major parts:
What is the brain and the spinal cord?
Neurons send messages using this type of signal.
What is electrical or chemical?
The part of the brain that interprets what we see.
What is the occipital lobe?
These nerves carry signals to the brain to tell it about what is going on in the outside world. They come from our skin (touch), eyes (sight), tongue (taste), nose (smell), and ears (hear).
What are sensory neurons?
Your brain uses about this percentage of your body's energy.
What is 20%?
Carries information from all over the body to the brain, and carries signals from the brain back to the body to allow you to move your body
What is the spinal cord?
This part of a neuron receives messages from other neurons.
What are dendrites?
This part of the brain is responsible for emotions and behavior.
What is the frontal lobe?
This set of nerves works automatically. We don't have to think about them, the brain does it all for us.
What is the Autonomic nervous system?
The nervous system is responsible for controlling this fastest-moving body part.
What are the eyes?
This protects the spinal cord.
What are the vertebrae bones?
Protects the axon and speeds up signals.
What does the myelin sheath do?
The left side of the brain controls movement on this side of the body.
What is the right side of the brain?
These are the nerves that we actively control, like jumping with our legs or moving our arms or rolling your eyes at your teacher after a corny joke
What is the Somatic nervous system?
The fastest nerve signals in the human body travel at about this speed (in mph).
What is 200 mph.