Peripheral Nervous System

what does the peripheral nervous system control?

acts as the communication network, carrying messages to the brain (sensory input) and from the brain

Subdivisions of the peripheral nervous system

Somatic and Autonomic

What does the somatic system regulate?

skin and skeletal muscles

What does the somatic system control?

voluntary response

What does the somatic system include?

reflexes

What does the somatic system protect the body from?

harm

What does the autonomic system regulate?

cardiac and smooth muscles and glands

does the autonomic system function automatically?

yes meaning that it is involuntary

What are the subdivisions of the autonomic system?

sympathetic and parasympathetic

What does the sympathetic system control?

emergency situations

whats the response to emergency situations?

increases heart rate and respiration, digestion, excretion inhibited, pupils dialted

what is the neurotransmitter for the sympathetic system?

norepinephrine

what is norepinephrine similar to?

adrenaline

what does the parasympathetic system respond during?

relaxation

how does the parasympathetic system response?

digestion, regular heart rate, pupils contracted

what is the neurotransmitter for the parasympathetic system?

acetycholine