Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Nervous system
Reverse Definitions
| Term | Definition |
|---|---|
| afferent nerves | Also known as sensory nerves; conduct impulses toward the central nervous system. |
| Alzheimer disease | Progressive neurological disorder of unknown etiology, characterized by memory loss, impaired judgement and impaired orientation. |
| anesthesia | without feeling; loss of sensation |
| analgesics | agents that relieve pain by inhibiting the passage of pain impulses. |
| autonomic nervous system | one of the two parts of peripheral nervous system which conveys impulses to glands, smooth muscles and cardiac muscles (involuntary functions). |
| aphasia | inability to speak |
| arachnoid membrane | middle layers covering the brain, between the dura mater and the pia mater |
| astrocytes | starshaped neuroglia, which forms the blood-brain barrier, allowing only small molecules to be transferred from the blood to the brain. |
| axon | a long, single projection that transmits impulses from the cell body |
| brainstem | major section of the brain that serves as a pathway for impulse conduction between the brain and spinal cord |
| catatonic | stuporous or unresponsiveness; inability to move or talk. |
| cerebellum | second largest part of the brain; occupies the back of the brain; refines the movement when the cerebrum initiates muscular movement; aids in maintaining equilibrium. |
| cerebrum | largest and uppermost portion of the brain whose major functions include sensory perception and interpretation, muscular movement , and emotional aspects of behavior and memory. |
| cisternal puncture | a spinal puncture at the base of the brain to extract spinal fluid or inject medication. |
| craniotomy | incision into the skull |
| dendrites | branching cytoplasmic projections that receive impulses and transmit them to the cell body. |
| dura mater | outermost membrane covering the brain and spinal cord. |
| dysrhythmia | abnormal rhythm, such as electrical disturbances in the brain. |
| dystrophy | poor development |
| efferent nerves | also known as motor nerves; conduct impulses away from the central nervous system. |
| encephalitis | inflammation of the brain. |
| epilepsy | a recurrent disorder of cerebral functions characterized by seizures. |
| ganglion | a collection of nerve bodies |
| hyperkinesia | excessive movement |
| idiopathic | occurring without a known cause. |
| meninges | Three membranes that cover and protect the brain and spinal cord: dura mater, arachnoid membrane, and pia mater. |
| microcephaly | abnormally small head |
| mixed nerves | nerves composed of both sensory and motor nerves |
| multiple sclerosis | a progressive, degeneration disease of myelin sheath, striking young adults 20-40; signs and symptoms include tremors, muscles weakness, and slowness of movement. |
| myelalgia | pain in the spinal cord |
| myelin | white fat-like sheath that covers many axons in the peripheral nervous system and central nervous system. |
| myelopathy | any disease of the spinal cord |
| nerve | a large bundle of axons wrapped in connective tissue. |
| neurolysis | surgical freeing of a nerve from adhesion |
| neuron | a nerve cell; the functional cell of the nervous system; responsible for impulse conduction |
| neurotransmitters | chemical substances that facilitate the transmission of impulses across synapses |
| opiates | stupor or sleep inducing (narcotic) drugs, containing opium. |
| parasympathetic nervous system | part of the autonomic nervous system. Reverses effects of the sympathetic system nervous on the body. |
| pia mater | innermost membrane covering the brain and spinal cord. |
| peripheral nervous system | includes all nervous tissue of the body found outside the central nervous system. |
| sedative | medication that depresses central nervous system activity; has a calming effect. |
| somatic nervous system | one of the two parts of the peripheral nervous system which conveys impulses for voluntary functions |
| sympathetic nervous system | part of the autonomic nervous system. When in use may cause symptoms such as an accelerated heart rate and increased blood pressure. |
| spinal cord | conveys sensory impulses to the brain from different parts of the body and also transmits motor impulses away from the brain to all muscles and organs. |
| synapse | a small space found between the axon of one neuron and the dendrite of another |
| Tay-Sach disease | genetic enzyme deficiency characterized by progressive mental challenges, paralysis, blindness, inability to eat and ultimately to death by age of four years. |
| tics | involuntary, spasmodic muscular contractions, usually of the face and neck |
| tranquilizers | medication used to reduce tension and anxiety without decreasing the level of consciousness |
| tremor | involuntary tremble or shake. |
Created by:
brittjones
Popular Neuroscience sets