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vocab. 6

TermDefinition
Regulation controls the amount and direction of responses. It also promotes proper coordination of responses to maintain homeostasis
Irritability the ability of a cell to respond to it’s environment
Impulse are the means by which information is transmitted along the neuron and throughout the nervous system
Stimulus something that causes a physiological response
Response action resulting from the stimulus
Receptor protein that detects a signal molecule and performs an action in response
Neuron(s) cell of the nervous system that transmits impulses between the body systems as well as interprets and stores some messages in the brain
Effector body parts that respond to nervous system command. They can be muscles or glands
Cell body contains the nucleus and other organelles. It is the site for metabolic activities
Dendrites branchlike extension of a neuron that receives impulses from neighboring neurons
Convolution(s) one of the irregular ridges on the surface of the brain and especially of the cerebrum
Axon long extension of the neuron membrane that carries impulses from one neuron to another
Reflex arc nerve pathway in which an impulse crosses only two synapses before producing a response
Cerebrum largest part of the brain, coordinating movement, thought, reasoning, and memory; includes the cerebral cortex and the white matter beneath it
Cerebellum part of the brain that coordinates and regulates all voluntary muscle movement and maintains posture and balance
Medulla oblongata is the lowest part of the brain that controls many involuntary activities
Central nervous system (CNS) part of the nervous system that interprets messages from other nerves in the body; includes the brain and spinal cord
Peripheral nervous system (PNS) division of the nervous system that transmits impulses between the central nervous system and other organs in the body
Meninges inflammation of the meninges (membranes) surrounding CNS caused by bacteria
Neurotransmitter(s) chemical that transmits a nervous system’s signal across a synapse
Created by: Katherine Acotsa
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