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67 Cards in this Set
- Front
- Back
Neurons transmit:
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Impulses
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Sensory (Afferent) nerves)
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Transmit stimuli to the brain and spinal cord
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Motor neurons (efferent nerves)
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Transmit impulses from the brain or spinal cord to muscles and glands
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Dendrites
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receive impulses and transmit them to the cell body
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The Myelin sheath:
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Reduces the possibility of an impulse stimulating adjacent nerves; it also accelerates impulse transmission
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The synapse is:
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A small space between neurons
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The nervous system is made up of the: (2)
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Central Nervous System and Peripheral Nervous System
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The Central Nervous System is made up of the:
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Brain and spinal cord
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The peripheral nervous system is made up of
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the cranial nerves and spinal nerves
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Sympathetic Nervous System
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Speeds up the system fight or flight
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Parasympathetic Nervous System
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Slows our body back down
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Cerebrum
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Largest part and is responsible for thought, judgment, and memory.
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Frontal lobe
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motor functions
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parietal
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receives and interprets nerve impulses from the sensory receptors
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occipital
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eyesight
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temporal
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senses of hearing or smell
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cerebellum
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coordination
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thalamus
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relays impulses from eyes, ears, skin to cerebrum, pain is also controlled here
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hypothalamus
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controls vital body functions (ie body temperature, hunger, thirst, sleep-wake cycles, endocrine system, emotions)
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brain stem is made of the following three parts:
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midbrain, pons, medulla oblongata
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Midbrain
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connects the brain with the spinal cord
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pons
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bridge; connect cerebellum to rest of the brain
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medulla oblongata
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controls the basic vital functions of life (ie respiration, heart rate, blood pressure)
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Meninges
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covering/protection for the spinal cord and brain
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The three layers of the meninges are:
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dura mater- outermost layer
arachnoid layer- middle layer pia mater- innermost |
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Ventricles:
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Spaces/canals for the cerebrospinal fluid to flow around the spinal cord and brain
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asthenia
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weakness
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ataxia
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without coordination
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aura
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preminition/feeling/signs something is going to happen
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autism
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child is in their "own world" - do not respond well to the outside
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cerebral palsy
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brain injury at birth
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coma
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deep unconsciousness
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concussion
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blow to the head
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dementia
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memory loss, do not think well (cognitive thinking is impaired)
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herpes zoster
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shingles
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varicella zoster
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chicken pox
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Huntington's Chorea
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hereditary; mental functions are affected, along with physical movement
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hydrocephalus
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excess amount of fluid in the ventricles
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lethargy
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do not respond well to commands
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Reye's syndrome
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group of symptoms, brain disease being one; in children
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sciatica
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sciatic nerve is inflamed or pinched- resulting in pain in the back, down the leg
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syncope
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fainting
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Bell's palsy
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facial paralysis
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CVA (stroke)
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caused by blood clot, embolus, or hemorrhage, resulting in decreased or no blood supply to the brain
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TIA
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minor stroke
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epilepsies
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chronic or recurring seizure disorders
Grand Mal seizures are more severe than petite mal seizures |
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Convulsions
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spastic, involuntary muscle contractions
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Parkinson's Disease
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progressive neurological disorder affecting the part of the brain responsible for controlling movement; Symptoms are tremors and shuffling gait (walk)
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Multiple Sclerosis
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Progressive degenerative disease of the CNS, resulting in loss of myelin (demyelination). This causes the transmission of electrical impulses from one neuron to another to basically "short circuit"
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Alzheimer's disease
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memory loss and serious mental deterioration.
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CNS
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Central Nervous System
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CP
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Cerebral Palsy
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CSF
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Cerebrospinal Fluid
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CVA
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Cerebrovascular Accident
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EEG
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Electroencephalogram
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LP
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Lumbar Puncture
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MS
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Multiple Sclerosis
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TIA
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Transient Ischemic Attack
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ALS
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Amyotrophic lateral sclerosis- Lou Gehrig's Disease
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Reflex
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Automatic, involuntary response to some change inside or outside of the body
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-plegia
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paralysis/stroke
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-paresis
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partial paralysis, not as severe as -plegia, more like a weakness, rather than paralysis
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hemiplegia
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paralysis of half- term you see as a result of a cva
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paraplegia and quadriplegia are usually the results of:
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accidents
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paraplegia
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paralysis of both legs; paralyzed from the waist down
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Quadriplegia
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paralysis of four(all four extremities) paralyzed from the neck down
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Difference between quadriplegia and paraplegia is:
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Where the spinal cord is severed
Quadriplegics usually have cervical/neck damage; where as paraplegics usually have lower damage like in the lumbar area |