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Mod B week 2
Pharm Tech book Chapter 17 Terms and definitions
| Terms | Definitions |
|---|---|
| Afferent | The direction of neuronal impulse from the body toward the central nervous system. |
| Autonomic | Self-controlling or involuntary |
| Autonomic nervous system | Division of the nervous system that controls the involuntary body functions;consists of sympathetic and parasympathetic divisions. |
| Axon | The part of a nerve cell that conducts impulses away from a cell body. |
| Blood-brain barrier | A barrier formed by special characteristics of capillaries to prevent certain chemicals from moving to the brain. |
| Cell body | The main part of a neuron from which axons and dendrites extend. |
| Central nervous system | Brain and spinal cord |
| Cerebrospinal fluid | A fluid that fills the ventricles of the brain and also lies in the spaces of the brain or spinal cord and the aracnoid layer of the meninges. |
| Cervical | Neck region |
| Dendrite | The part of a neuron that branches out to bring impulses to the cell body. |
| Efferent | The conduction of electrical impulses away from the central nervous system to the body. |
| Lumbar | The region of the back that includes the area between the ribs and the pelvis;the area around the waist. |
| Monoamine oxidase | An enzyme(includes MAO-A and MAO-B)found in the nerve terminals, the neurons, and liver cells;it incativates chemicals such as tyramine, catecholamines, serotonin, and certain medications. |
| Nerve terminal | 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. |
| Neuron | The functional unit of the nervous system, which includes the cell body,dendrites, axon, and terminals. |
| Parasympathetic nervous system | Division of the autonomic nervus system that functions during restful situations; "breed or feed" part of the autonomic nervous system. |
| Peripheral nervous system | The division of the nervous system outside the brain and spinal cord. |
| Somatic | The motor neurons that control voluntary actions of the skeletal muscles. |
| Sympathetic nervous system | Division of the autonomic nervous system that functions during stressful situations;"fight or flight" part of the autonomic nervous system. |
| Thoracic | Relates to the thorax area or the chest |
Created by:
scrooker32
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