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Biology Study Guide - Central and Peripheral Nervous System - Kevin
Terms in this set (28)
What is the function of central nervous system
What is the function of peripheral nervous system
gathers and transmits information
what organs make up the nervous system?
brain and spinal cord
what types of neurons make up the peripheral nervous system?
motor neurons and sensory neurons
the largest part of the brain, coordinating movement, thought, reasoning, and memory.
layer of green matter on the surface of the cerebrum that receives information and produces responses
the part of the brain that coordinates and directs all voluntary muscle movement and controls posture and balance.
part that connects the brain to the spinal cord and controls breathing and heartbeat
nerve pathway in which an impulse crosses only two synapses before producing a response
somatic nervous system
part of the peripheral nervous system that sends signals from the brain to the muscles that produce voluntary movements
autonomic nervous system
part of the peripheral nervous system that controls involuntary functions
sympathetic nervous system
part of the autonomic nervous system that prepares the body for action and stress
parasympathetic nervous system
division of the peripheral nervous system that calms the body and helps the body to conserve energy
A sensory neuron passes signal to the
What passes signal to the brain?
the spinal cord
What interprets the signal and passes it to the PNS?
A motor neuron
produces a response
what is the role of the cerebrum?
It forms responses such as hunger, thirst, emotions, motion, or pain.
What are the three main structures of the brain?
cerebrum, cerebellum, and brain stem.
Characteristics of the Somatic nervous system
voluntary and it stimulates muscles
Characteristics of the autonomic nervous system
involuntary and it stimulates the digestive system, heart, blood vessels, and glands
Characteristics of the sympathetic nervous system
involuntary and it stimulates the heart, brain, lungs, and muscles
Characteristics of the parasympathetic nervous system
involuntary and it stimulates the heart, lungs, and arteries
Clue: an arc is movement that is in the shape of an arch
Reflex arc: A pathway that moves in the shapes of an arch from sensory neuron to the spinal cord and out a motor neuron
Clue: Autonomic looks similar to the word automatic
Autonomic nervous system: Functions controlled by the autonomic NS are those that are automatic involuntary and occur without thinking about it
Clue: a cortex is an outermost layer
Cerebral cortex: the cerebral cortex is the outermost layer of the cerebrum
Clue: Consider something that is sympathetic might affect homeostasis
Sympathetic nervous system: The sympathetic NS is favorable for maintaining homeostasis.
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