Nervous System Flashcards
What is a reflex?
An immediate response to a stimuli.
Define stimuli.
Anything that triggers a response.
What is a synapse?
The gap between 2 neurons.
What does peripheral refer to?
The sides or edges.
What is the major organ of the nervous system?
Brain.
What is the function of the spinal cord?
Relays messages and carries responses to and from the brain.
What is the role of the peripheral nervous system (PNS)?
Connects the CNS to all parts of the body.
What are the two main divisions of the nervous system?
CNS and PNS.
What does the autonomic nervous system control?
Involuntary actions.
What does the somatic nervous system control?
Voluntary actions.
What is the basic unit of the nervous system?
Neuron /Nerve Cell.
What is the function of sensory/afferent neurons?
Transmit information collected by the sense organs.
What is the role of motor/efferent neurons?
Transmit messages from the brain to the skeletal muscles.
What is the function of associate/relay neurons or interneurons?
Allow communication between sensory or motor neurons; ONLY FOUND in the CNS.
Fill in the blank: The nervous system is a complete _______ system in the body.
communication
True or False: The spinal cord is part of the peripheral nervous system.
False.
