CNS and PNS Flashcards
What are the components for the CNS?
The brain and spinal cord.
What are the components of the PNS?
Everything but the brain and spinal cord
Efferent (motor) system…
Is the system which has an effect.
Reacts to the information coming from the afferent neurons.
Afferent (sensory) system
Affect.
Gathers sensory information to send to the brain.
Pyramidal system is…
The pathway for voluntary movement.
Extrapyramidal system is…
The pathways for postural control and certain reflex movement.
Neuronal structure:
Cell body - location of the nucleus.
Dendrites - take in information.
Axon - main projection in which information will be transmitted out.
Terminal - impinges on a target neuron.
Synapses is…
The passing of information from one neuron to another