Nervous System Flashcards
What are the 3 interconnected functions?
sensory output, integration, motor output
What are the nervous system composed of
2 classes of cells; supporting cells and neruons
Central nervous system consists of
brain and spinal cord
Peripheral nervous system
consists of nerves and receptors
Nerves definition
bundle of neurons
Types of neurons
Non-myelnaeted (gray matter) and it functions to integrate
Types of synapses
Inhabitory, excitatory, neurotransmitter
Inhabitory synapses block the…
block the propagation of the nerve impulse
Excitatory synapses stimulate the…
propagation of the nerve impulse
Neurotransmitter synapses chemical that will…
turn on or off the next neuron
What are neurotrodulators
chemicals which change the action of neurotransmitter
What is resting state
all neurons have an excitable membrane
What is an excited state
channels open up membrane & there is an influx of ions into the axon
