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Describe the difference between conscious and unconscious responses
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Describe the difference between conscious and unconscious responses
a conscious response to a sensory stimulus is a reaction that involves awareness whereas an unconscious response to a sensory stimulus is a reaction that does not involve awareness
Describe spinal reflex
an unconscious, involuntary and automatically occurring response to certain stimuli without any involvement of the brain, its sometimes referred to as a relfex arc
Why is a spinal reflex important?
its an involuntary and nearly instantaneous movement in response to a stimulus. it can prevent you from burning something if its too hot
What is the Nervous System comprised of?
central nervous system and peripheral nervous system
define neuron
An individual nerve cell that is specialized to receive, process and or transmit information
Describe the three different types of neurons and draw an image of each
Sensory neurons - nerve cells within the nervous system

motor neurons- nerve cell forming part of a pathway along which impulses pass from brain or spinal cord to muscle or glands

inter neurons- create neural circuits
Dendrite:
the branches of a neuron that detect and receives information from other neurons
soma
a part of a neuron that processes and inter generates information and decides if a neuron will fire
axon
tube-like extension that transmits neural information to other neurons
axon terminals
small branches at the end of each axon called axon collaterals at the end of these are the axon terminals, each axon terminal has a small knob like swelling at the tip called terminal button
myelinwhite fatty substance that insulates the axon and helps speed up neural transmissionTerminal buttonsmall structure that secrete and release neurotransmitter which carries messages to other neurons or cellsneurotransmitterelectrochemical messages that carry messages to other neurons, muscles or organsIn what way are the structure and functions of a dendrite different from those of axon terminals?Axon transmits neural information whereas dendrites detects and receives information from other neuronsWhy is neuronal activity referred to as electrochemical?Neurons communicate through an electrochemical processWhat is the synaptic gap?The tiny space between the terminal buttons of one neuron