Nervous System Warm Up Flashcards
The sympathetic and parasympathetic nervous system are subdivisions of what nervous system?
The Autonomic Nervous System
An action potential is caused by an influx of what ions into the cell?
Sodium Ions
What is a synaptic cleft?
The gap between two communicating neurons
Afferent nerves are called ___ , and motor nerves are called ___.
-Sensory Nerves
-Efferent Nerves
What is the role of the sympathetic nervous system?
Preparing the body for “Fight or Flight” response
What is irritability?
The ability to respond to a stimulus
What is the sequence in a typical reflex arc?
-Receptor
-Afferent/Sensory Neurons
-Integration/Control Center
-Efferent/Motor Neuron
-Effector
What structures make up the peripheral nervous system?
Spinal nerves
What is the function of the olfactory nerve?
Smell
What is a neurotransmitter?
The substance that is released at axonal endings to propagate a nervous impulse
What structures make up the central nervous system?
Brain and Brain Stem
Which neuron process normally receives incoming stimuli?
Dendrites
