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Blesi8e Ch10 Terms
[MA3] The Nervous System [Tier 01]
| Term | Definition |
|---|---|
| action potential | the temporary electrical charge within a cell |
| angiography | a radiologic study of a cardiac artery using a radiopaque medium. |
| arachnoid | a delicate, lacelike membrane covering the central nervous system |
| arteriography | a radiologic study of an artery using a radiopaque medium |
| auditory | pertaining to the sense of hearing |
| autonomic | spontaneous; the part of the nervous system concerned with reflex control of bodily functions. |
| axon | a long cable that snakes away from the main part of a neuron. |
| central | situated at or related to a center. |
| cerebellum | lower or back brain below the posterior portion of the cerebrum. |
| cerebrospinal fluid | the liquid that circulates within the meninges of the brain, spinal cord and ventricles |
| cerebrum | the largest part of the brain. It is divided into two hemispheres with four lobes in each hemisphere |
| coma scale | refers to the Glasgow Coma Scale used to determine the level of consciousness. |
| computed tomography (CT) | combines a series of X-ray images taken from different angles to create cross-sectional images. |
| cranium | the skull; the eight bones of the head enclosing the brain; generally applied to the 28 bones of the head and face. |
| dendrite | an extension from a nerve cell. |
| dura mater | the outer membrane covering the brain and spinal cord. |
| electroencephalography (EEG) | recording the electric currents generated by the brain' a tracing of brain waves |
| electromyography (EMG) | the insertion of needles into selected skeletal muscles for the purpose of recording nerve conduction time in relation to muscle contraction. |
| frontal | anterior; the forehead bone; refers to the plane drawn through the side of the body from the head to the foot. |
| ganglion | a mass of nerve tissue that receives and sends out nerve impulses. |
| hypothalamus | a structure of the brain between the cerebrum and the midbrain; lies below the thalamus. |
| interneurons | neurons connecting sensory to motor neurons |
| internuncial neuron | a connecting neuron in a neural pathway, usually serving as a link between two other neurons. |
| longitudinal fissure | the deep cleft between the two hemispheres of the cerebrum. |
| lumbar puncture | the insertion of the needle between the vertebrae in the lumbar area for the purpose of withdrawing spinal fluid. |
| magnetic resonance imaging (MRI) | a diagnostic test using magnetic waves to visualize internal body structures. |
| medulla oblongata | enlarged portion of the spinal cord; the lower portion of the brainstem. |
| meninges | the membranes covering the brain and spinal cord |
| midbrain | that portion of the brain connecting the pons and the cerebellum. |
| migraine | a severe headache with characteristic symptoms |
| motor neuron | nerves that permit the body to respond to stimuli. |
| myelography | an X-ray examination of the spinal cord following an injection of a radiopaque material. |
| occipital | pertaining to the back part of the head, the posterior lobe of the cerebrum. |
| olfactory | pertaining to the sense of smell |
| optic | pertaining to the eye or sight. |
| parasympathetic nervous system | a division of the autonomic nervous system. |
| parietal | a central portion of the cerebrum located on each side of the brain |
| peripheral | the portion of the nervous system that connects the CNS to every organ and area of the body. |
| pia mater | innermost of the three meninges of the brain and spinal cord. |
| plexuses | a network of nerves |
| pons | a portion of the brainstem connecting the medulla oblongata and cerebellum with upper portions of the brain |
| positron emission tomography (PET scan) | a form of imaging permitting visualizing the physiologic function of the body. |
| sciatica | inflammation and pain along sciatic nerve felt at the back of the thigh running down the inside of the leg. |
| sensory neuron | refers to the nerves that receive and transmit stimuli from the sense organs |
| spina bifida occulta | a disorder characterized by a defect in the spinal vertebrae with or without protrusion of the spinal cord and meninges. |
| subarachnoid | the space between the pia mater and the arachnoid containing cerebrospinal fluid. |
| subdural | beneath the dura mater; the space between the arachnoid and the dura mater. |
| sympathetic | a division of the autonomic nervous system. --- |
| synapse | the minute space between the axon of one neuron and the dendrite of another. |
| syndrome | the combination of symptoms with a disease or disorder. |
| temporal | relating to the temporal bone on the skull |
| thalamus | a portion of the brain lying between the cerebrum and the midbrain. |
| thorax | the chest; the body cavity enclosed by the ribs and containing the heart and lungs. |
| ventricle | cavities within the brain |
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MaesterRay
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