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CNHP 2010 Chapter 4
Nervous System
| Term | Definition |
|---|---|
| cerebell/o | cerebellum (little brain) |
| cerebr/o | cerebrum (largest part of the brain) |
| crani/o | skull |
| encephal/o | entire brain |
| esthesi/o | sensation |
| gangli/o | ganglion (knot) |
| gli/o | glue |
| gnos/o | knowing |
| hypn/o | sleep |
| kinesi/o | movement |
| lex/o | word or phrase |
| mening/o | meninges (membrane) |
| meningi/o | meninges (membrane) |
| myel/o | spinal cord or bone marrow |
| narc/o | stupor or sleep |
| neur/o | nerve |
| phas/o | speech |
| phob/o | exaggerated fear or sensitivity |
| phor/o | carry or bear |
| phren/o | mind |
| psych/o | mind |
| schiz/o | split |
| somat/o | body |
| somn/i | sleep |
| somn/o | sleep |
| spin/o | spine (thorn) |
| spondyl/o | vertebra |
| stere/o | three-dimensional or solid |
| tax/o | order or coordination |
| thalam/o | thalamus (a room) |
| thym/o | mind |
| ton/o | tone or tension |
| top/o | place |
| ventricul/o | ventricle (belly or pouch) |
| vertebr/o | vertebra |
| cata- | down |
| -asthenia | weakness |
| -lepsy | seizure |
| -mania | condition of abnormal impulse toward |
| -paresis | slight paralysis |
| -plegia | paralysis |
| neuron | functional units that consists of cell body, axon, and myelin |
| cell body | nucleus, dendrites |
| myelin | fat and protein sheath around axon |
| central nervous system (CNS) | brain and spinal cord |
| peripheral nervous system (PNS) | nerves that branch from the CNS |
| autonomic nervous system (ANS) | nerves that carry involuntary impulses to smooth muscle, cardiac muscle, and various glands |
| Motor division of PNS includes | somatic nervous system and autonomic nervous system |
| somatic nervous system | voluntary, conscious control (skeletal muscles) |