Brain
What does the brain do
Control Nervous system
Where does the spinal code originate
The base of the brain
What is it not?
Brain + spinal cord
What is it responsible for
All involuntary body functions
What is it made of
Brain
Spinal cord
Spinal and cranial nerves
What is another name for the brain
Command center
What is it composed of
Long nerve fiber
Where does the network of nerve cells carry message to + from?
Central Nervous system
What are the 3 sub systems
Sympathetic
Enteric
Parasympathetic
What does a nerve look like
Whitish fiber or bundle of fibers
What are 3 major areas
Cerebrum
Cerebellum
Spinal cord
How many pairs of spinal nerves does the spinal cord hold
31
What's the main difference between PNS and CNS
What body status does the autonomic nerves respond to
Physiological
How does it function
By taking in information an responding
How heavy is a human head
45-49oz
Where does it end
Tailbone
What is it made up of
Sensory + motor systems
When the body is relaxed the parasympathetic nerves respond by doing what
Lower blood pressure
What is it responsible for
All voluntary body action
Thoughts
Reasoning
Facial expressions
Functions of the 5 senses
How much oxygen does the brain use when you inhale
20%
What happens when you damage the spinal cord
Paralysis
What is PNS?
Peripheral nerves system
What does the enteric nervous system do
Governs gastrointestinal track
What is another name for it
Cerebrospinal system