Nervous system - Nervous system Peripheral nervous system
5 important questions on Nervous system - Nervous system Peripheral nervous system
What is the peripheral nervous system?
The sensory or afferent division of the PNS conveys input into the CNS from Sensory receptors in the body.
The motor or efferent division of the PNS conveys output from the CNS to effectors (muscles or glands)
The system if further subdivided into a somatic nervous system and an autonomic nervous system.
What is a motor nerve?
What does volunary mean? What does involuntary mean and what does coordinator mean?
Involuntary: Done without conscious control.
Coordinator: the central nervous system (CNS)
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What are some characteristics of the autonomic nervous system (ANS)
Conveys output from the CNS to smooth muscle, cardiac muscle and glands.
Because its motore responses are not normally under conscious control, the action of the ANS is involuntary.
Explain the subdivision so the autonomic nervous system.
Parasympathetic nervous system: calms the body and helps the body to conserve energy This is the rest and digest response.
Enteric nervous system: network of 100 million neurons in the GI tract that regulates its smooth muscles and glands. It can function independently bu it communicates with and is regulated by the other branches of the ANS.
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