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Psychology

TermDefinition
Nervous System A complex body system that receives information, processes information, and coordinates responses.
Sensory Cells Cells used by the nervous system to receive external information.
Central Nervous System (CNS) The branch of the nervous system made up of the brain and spinal cord.
Brain An extremely complex cluster of neurons that processes information from nerves and relays it throughout the body.
Spinal Cord A long column of nerve tissue that extends from the base of the brain and is encased in the spinal column.
Function of the Spinal Cord To send sensory information to the brain and motor information to the peripheral nervous system.
Spinal Reflex A simple action activated by the spinal cord without communication with the brain.
Adaptive Reflexes Reflexes that save time during potentially dangerous situations.
Peripheral Nervous System (PNS) A network of neurons that communicates information between sense organs, muscles, glands, and the CNS
Somatic Nervous System (SNS) The network of neurons responsible for communicating with sensory receptors and transmitting information to the CNS.
Skeletal Nervous System Another name for the somatic nervous system because it connects muscles attached to bones with the CNS.
Voluntary Movement Movement that we can control.
Autonomic Nervous System (ANS) A network of neurons that connects the CNS with the body’s internal organs and glands.
Autonomic Refers to organs and glands that operate automatically or are self-regulating.
Sympathetic Nervous System The branch of the ANS involved in arousing the body in response to a threat.
Fight, Flight, or Freeze Response The body’s response to danger controlled by the sympathetic nervous system.
Parasympathetic Nervous System The branch of the ANS active during quiet and restful periods.
Neurons Nerve cells that make up the nervous system.
Created by: user-2042579
 

 



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