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List the two funtional divisions of neurons.
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The afferent division carries what type of information?
sensory information from receptors
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The efferent division carries what type of information?
motor information to effectors
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List the two major anatomical divisions of the nervous system.
- central nervous system
- peripheral nervous system
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The CNS consists of what two major organs.
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Which part of the nervous system handles information processing and higher order functions?
the CNS
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Define Peripheral Nervous System.
everything outside the brain and spinal cord
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Lis the three subdivisions of the PNS discussed in class.
- somatic nervous system
- autonomic nervous system
- enteric nervous system
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What do somatic sensory receptors monitor?
tactile information such as touch, pain, temperature, pressure, and vibration
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Do somatic nerves monitor special senses?
yes, through special sense receptors
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Somatic sensory neurons will carry information from _______ to the _______.
receptors, CNS
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Where will somatic motor neurons send commands to?
peripheral effectors, usually skeletal muscle
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What is monitored by autonomic sensory receptors?
function of organ systems
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List three examples of functions monitored by the autonomic nervous system.
- blood pressure
- heart rate
- pH
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Autonomic sensory neurons transmit information about organ systems to the:
central nervous system (CNS)
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What structures are controlled by autonomic motor neurons?
- smooth muscle
- cardiac muscle
- glands
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Where will visceral motor neurons send commands to?
effectors in the visceral organ systems
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What does the enteric nervous system (ENS) control?
digestion, through intitiation of enteric motor neurons
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What structures control the ENS?
- smooth muscle
- digestive glands
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True or False: Enteric sensory neurons can send information to the brain or transmit directly to local motor neurons.
True
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If enteric sensory data is sent directly to the brain, the response will likely be _______ in nature.
systemic
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If enteric sensory data goes directly to enteric motor neurons, the response will likely be:
localized
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What structural part of the neuron brings information into the neuron?
dendrites
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The information processing center of the neuron is referred to as the:
soma, or cell body
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Where in the neuron is the local potential produced?
the axon hillock
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What structural part of a neuron carries information towards the postsynaptic cell/membrane?
axons
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Branches of an axon, which terminate as synaptic terminals or knobs, are known as:
telodendria
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True or False: Cell metabolic functions occur in the axon.
False - cell metabolic functions occur in the cell body, or soma.
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If the local potential in the axon hillock reaches threshold an _______ _______ results.
action potential
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The tiny subdivisions of dendrites are known as:
dendritic branches
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