Peripheral Nervous System - Autonomic Nervous System Flashcards
What makes up the peripheral nervous system?
All the nerves outside the central nervous system.
What is the function of the peripheral nervous system?
To replay nerve impulses from the central nervous system (the spinal chord and brain) to the rest o the body and from the body back to the central nervous system.
What are the two main divisions of the peripheral nervous system?
The somatic nervous system and the autonomic nervous system.
What type of actions does the autonomic nervous system regulate?
The things your body carries out without your conscious awareness such as your heart beating and your intestines digesting food.
Why is the autonomic nervous system necessary?
Because vital bodily functions would not work effectively if you had to think about them.
What are the two parts of the autonomic nervous system?
The sympathetic nervous system.
The parasympathetic nervous system.
Do both the sympathetic nervous system and the parasympathetic nervous system tend to regulate the same organ?
Yes, but have opposite effects.
What is the basic explanation of both the sympathetic nervous system and the parasympathetic nervous system?
Sympathetic -pushes you into action when faced with an emergency.
Parasympathetic - relaxes you again once the errancy has passed.
What is the sympathetic nervous system primarily involved in?
Responses that help to deal with emergencies (fight or flight).
What are some examples of what the sympathetic nervous system may cause.
An increasing heart rate, blood pressure, dilating blood vessels in the muscles.
As well as producing increases in certain things when you are faced with an emergency, what does the sympathetic nervous system slow down?
Bodily processes that are less important in emergencies, such as digestion and urination.
Where the sympathetic nervous system cases the heart to beat faster and blood pressure to increase, what does the parasympathetic nervous system do?
Slows down heartbeat and reduced blood pressure.
When the sympathetic nervous system is arose, digestion is inhibited, what happens to digestion was the parasympathetic nervous system gets involved again?
Digestions begins.
What is the parasympathetic nervous system sometimes referred to and why?
Rest and digest system.
Because its involved with energy conservation and digestion.
