All About the System
The components of the nervous system (3-4 organs and structures)
Brain, spinal cord, body nerves, sensory organs
Another word for nerve cell
Neuron
Branches off of the cell body that receive signals from other neurons
Dendrites
Two sections of the nervous system
Central nervous system (CNS) and Peripheral nervous system (PNS)
Purpose of nerves
Send information/signals between the body and brain to coordinate body functions
Structure that sends the signal as an electrical impulse within a neuron
Axon
Components of the CNS and PNS
CNS: Brain and spinal cord
PNS: body nerves
Main parts of a nerve (4)
Dendrites, cell body, axon, axon terminals
Branches that send the signal in the form of chemicals to be received by the next neuron in the chain
Axon terminals
Nerves that carry sensation information towards the brain
Sensory nerves
How nerves connect to each other
Axon terminals from one neuron (nerve) send signal to be received by the dendrites of the next neuron in the chain
The gap between the axon terminals of one neuron and the dendrites of another in a chain of neurons
Synapse
Nerves that carry instructions from the brain to the body
Motor nerves
Form in which the signal is sent within the neuron
Electrical impulse
Chemicals released sending the signal between two neurons
Neurotransmitters