Anatomy of Neuron
Cells that make up the brain, spinal cord, and nerves
What are neurons?
Number of neurons inside the brain
What is 100 billion?
Carries sensory input for smell
What is olfactory?
Caused by a blow to the head
What is a concussion?
The speed at which messages get sent in the body
What is 268 or 270 mph?
The three parts each neuron contains
What are cell body, dendrites, and axons?
The largest part of the human brain
What is the cerebrum?
What is optic?
Loss of sensation and movement
What is paralysis?
The length of the longest nerve cell in the body
What is 4ft?
The gap between the neurons
What is a synapse?
At the base of the brain
What is the cerebellum?
Provides sensory input for hearing and equilibrium
What is auditory?
Abnormal transmission of messages between the neurons in the brain
What is epilepsy?
As we age, our brain shrinks this much every year
What is 1-2g?
Nerve fibers that cannot be regenerated if damaged
Connects the rest of the brain to the spinal cord. Regulates breathing, swallowing, coughing, sneezing, vomiting, heartbeat, and blood pressure.
What is the medulla oblongata?
Longest cranial nerve
What is the vagus nerve?
A gradual shrinking of neurons in cerebrum
What is Alzheimer's Disease?
The spinal cord has this many neurons
What is 13.5 million?
Special chemical that allow messages to be sent across the synapase
What are neurotransmitters?
Area responsible for language, temperature, pressure, and touch
What is the parietal lobe?
Permits movements of the head and shoulders
What is the accessory nerve?
The brain does not produce enough of the neurotransmitter that transmits messages from the brain to the muscles
What is Parkinson's disease?
We lose 1/10 of our neurons by this age
What is 75?