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MOD B - WEEK 2
CH. 17 VOCAB
| Question | Answer |
|---|---|
| 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 arachnoid 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 found in the nerve terminals, the neurons, and liver cells; it inactivates chemicals such as tyramine, catecholamines, serotonin, and certain medications |
| NERVE TERMINAL | the end portion of the neuron where nerve impilses 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 nervous 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:
miss_nashay
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