Peripheral Nervous System (PNS)
- Created by: kenneyn14
- Created on: 03-04-19 21:09
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- The Peripheral Nervous System (PNS)
- Autonomic Nervous System (ANS)
- Antagonistic meaning it is made up of 2 systems which exert opposite on the same organ
- parasympathetic and sympathetic
- work in an equal but opposite manner to maintain a stable internal environment by homeostatius
- stimulation of the sympathetic system prepares the body for action and energy expendature
- characterised by an increased heart rate and blood pressure and blood diverted to skeletal muscle
- After the excitement has passes the parasympathetic system kicks in and calms the body back down to 'normal' (rest and digest)
- helps the body conserve resources and save energy
- parasympathetic and sympathetic
- Antagonistic meaning it is made up of 2 systems which exert opposite on the same organ
- Somatic Nervous System (SNS)
- Mostly controls voluntary actions
- contains sensory and motor neurons
- sensory neurons take impulses from the sense organs (receptor) to the CNS
- Motor neurons take impulses from the CNS to the muscles and glands (effectors)
- Autonomic Nervous System (ANS)
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