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MD B WK2

DEFINITIONS

QuestionAnswer
The direction of neuronal impulse from the body toward the central nervous system. AFFERENT
Self-controlling or involuntary AUTONOMIC
Division of the nervous system that conrols the involuntary body functions; consists of sypathetic and parasympathetic divisions. AUTONOMIC NERVOUS SYSTEM
The part of a nerve cell that conducts impulses away from cell body. AXON
a barrier formed by special characteristics of capillaries to prevent certain chemicals from moving to the brain BLOOD-BRAIN BARRIER
The main part of a neuron from which axons and dendrites extend. CELL BODY
Brain and spinal cord CENTRAL NERVOUS SYSTEM
A fluid that fills the ventricles of the brain and also lies in the spaces of the brain or spinal cord and the arachnoid layer of the meninges CEREBROSPINAL FLUID
Neck region CERVICAL
The part of a neuron that branches out to bring impulses to the cell body. DENDRITE
The conduction of electrical impulses away from the central nervous system to the body EFFERENT
The region of the back that includes the area between the ribs and the pelvis;area around the waist LUMBAR
An enzyme (includes MAO-A and MAO-B) fpound in the nerve terminals, neurons, and liver cells; it inactivates chemicals such as tyramine, catecholamines,serotonin, and certain medications. MONOAMINE OXIDASE
The end portion of the neuron where nerve impulses cause chemicals to be released; these cross a small space, called a synaptic cleft, to carry the impulse to another neuron. NERVE TERMINAL
The functional unit of the nervous system, which includes the cell body,dendrites, axon, and terminals NEURON
Division of the autonomic nervous system that functions during restful situations; "breed or feed" part of the autonomic nervous system PARASYMPATHETIC NERVOUS SYSTEM
The division of the nervous system outside thr brain and spinal cord PERIPHERAL NERVOUS SYSTEM
The motor neuron that control voluntary actions of the skeletal muscles SOMATIC
Division of the autonomic nervous system that functions during stressful situations; "fight or flight" part of the autonomic nervous system SYMPATHETIC NERVOUS SYSTEM
Relates to the thorax area or the chest THORACIC
Created by: ALYSSA1
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