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| Peripheral Nervous System |
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12 Pairs
Carry impulses between brain, head, and neck |
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Are sensory receptors
Carry messages toward the CNS |
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Are motor receptors
Travel from the CNS to voluntary muscles
Tells muscles how to respond |
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| Functions are involved with sensations |
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| Stimulates and speeds up functions |
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| Slows down functions to keep balance |
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| Carry impulses toward body |
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| Causes MS (Multiple Sclerosis) |
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| worsening of Sx (symptoms) |
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| Chemical substances that carry impulse over space |
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Definition
Are destroyed by an inactivator
Can not go backwards
Change from electrical to chemical |
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Definition
(spinal cord & neuromuscular junctions)
Influences muscle action |
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Definition
(brain)
Mood & thought disorders & abnormal movements (Parkinson’s Dz) |
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Definition
(brain)
Help relieve pain
"Runners’ high" |
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Definition
(brain)
Affects alertness & increases BP
Releases glucose in response to stress
Also released by adrenal glands for fight or flight response |
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Definition
(brain)
Sleep, hunger, & pleasure recognition
Sometimes linked to mood disorders |
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Definition
Selective serotonin reuptake inhibitors
SSRI’s increase the amount of Serotonin in synapse & patient feels better |
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Definition
| Unbalanced Serotonin levels |
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Definition
| Primary center for regulating & controlling the body’s activities |
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Definition
Largest part of the brain
Controls highest level of thinking judgment memory critical thinking voluntary muscle movement |
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Definition
| Attaches the 2 hemispheres of the cerebrum |
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Definition
Surface is gray matter
Inside is white matter |
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| Shows activity in the brain and what areas control that activity shows what areas are being used |
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| Posterior and under the cerebrum coordinates voluntary movement maintain equilibrium and muscle tone |
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| Relay center for impulses from receptors eye, ear, & skin. Groups sensory impulses as to body part before relaying them to cerebrum. Perception of pain is controlled here |
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Definition
Regulates flow of pituitary hormones
Controls temperature, sleep, appetite, thirst, sexual desire, and emotions like fear and pleasure |
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Definition
| Connects cerebrum to spinal cord |
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Definition
Connects cerebrum and cerebellum with the rest of the brain
Controls reflexes for eyes and head |
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Connects spinal cord to rest of brain
Controls heart rate, respiratory muscles, BP, coughing, sneezing, swallowing, and gag reflex |
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Produced in ventricles of brain
Covers brain and spinal cord Cushions and protects from jolts & bumps Cools these organs Provides nutrients and removes wastes Constantly circulates |
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Definition
lumbar puncture
Spinal Tap |
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Definition
| 3 layers of connective tissue surrounding the brain |
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Tender/Delicate
Located closest to the brain |
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Term
| Arachnoid membrane (spider web like) |
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Definition
Arachnoid villi attach to other membranes
Villi allow for CSF to circulate between them
Located between the Dura and Pia Mater |
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Definition
| Excessive CSF production and not enough absorption |
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Definition
| normal pressure hydrocephalus |
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S/SX gait disturbance unsteady urinary
frequency/incontinence dementia |
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Entire body
Uncontrolled jerking movements |
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Petit mal
Temporary loss of awareness |
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Seizure of sleep
Uncontrollable falling asleep during the day for brief periods of time |
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Chronic degeneration of brain tissue
Fine muscle tremors
Inability to do ADL’s
Rigidity and “mask like appearance”
Shuffling gait
Loss of dopamine in brain |
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Definition
decline in mental abilities
As dz progresses |
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Definition
Progressive deterioration of the brain
Affects memory and cognitive (reasoning) abilities |
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Definition
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Definition
Mini Stroke
Transient Ischemic Attack |
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Term
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Definition
Violent shaking of the brain
Temporary LOC
Deficit usually clears in 24 hours |
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Definition
| loss of neurological function |
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Definition
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Definition
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| Attention Deficit Disorder |
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Term
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Definition
| Attention Deficit Hyperactivity Disorder |
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Definition
Substandard reading
Cannot process symbols |
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Term
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Definition
| generalized anxiety disorder |
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Definition
| obsessive compulsive disorder |
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