BIOL 223 Chapter 12-1
Card Set Information
BIOL 223 Chapter 12-1
anatomy physiology neurons
Study Cards for Chapter 12 BIOL 223 CSN
List the two funtional divisions of neurons.
The afferent division carries what type of information?
sensory information from receptors
The efferent division carries what type of information?
motor information to effectors
List the two major anatomical divisions of the nervous system.
central nervous system
peripheral nervous system
The CNS consists of what two major organs.
Which part of the nervous system handles information processing and higher order functions?
Define Peripheral Nervous System.
everything outside the brain and spinal cord
Lis the three subdivisions of the PNS discussed in class.
somatic nervous system
autonomic nervous system
enteric nervous system
What do somatic sensory receptors monitor?
tactile information such as touch, pain, temperature, pressure, and vibration
Do somatic nerves monitor special senses?
yes, through special sense receptors
Somatic sensory neurons will carry information from _______ to the _______.
Where will somatic motor neurons send commands to?
peripheral effectors, usually skeletal muscle
What is monitored by autonomic sensory receptors?
function of organ systems
List three examples of functions monitored by the autonomic nervous system.
Autonomic sensory neurons transmit information about organ systems to the:
central nervous system (CNS)
What structures are controlled by autonomic motor neurons?
Where will visceral motor neurons send commands to?
effectors in the visceral organ systems
What does the enteric nervous system (ENS) control?
digestion, through intitiation of enteric motor neurons
What structures control the ENS?
True or False: Enteric sensory neurons can send information to the brain or transmit directly to local motor neurons.
If enteric sensory data is sent directly to the brain, the response will likely be _______ in nature.
If enteric sensory data goes directly to enteric motor neurons, the response will likely be:
What structural part of the neuron brings information into the neuron?
The information processing center of the neuron is referred to as the:
soma, or cell body
Where in the neuron is the local potential produced?
the axon hillock
What structural part of a neuron carries information towards the postsynaptic cell/membrane?
Branches of an axon, which terminate as synaptic terminals or knobs, are known as:
True or False: Cell metabolic functions occur in the axon.
False - cell metabolic functions occur in the cell body, or soma.
If the local potential in the axon hillock reaches threshold an _______ _______ results.
The tiny subdivisions of dendrites are known as: