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Afferent Nerves
Carry messages toward the Brain from the Sensory Organs
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Blood Brain Barrier
Blood vessels that selectively let certain substances enter the brain tissue and keep other substances out.
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Cerebrospinal fluid (CSF)
Fluids that circulates throughout brain and spinal cord
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Meninges
Three protective membranes that surround the brain and spinal cord
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Nerve
Microscopic cordlike collection of fibers that carry electrical impulses
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Neurotransmitter
Chemical messengers, released at the end of nerve cells (Axil). Stoimulates or inhibits anotehr cell, which can be a nerve cell, muscle cell or gland cell. EX: Acetylcholine, noreprine, dopamine, serotonin, gaba, glutamate
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Peripheral Nervous System
Nerves outside the brain and spinal cord: (Cranial spinal and Autonomic)
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Sciatic Nerve and Sciatica
Nerves existing from the base of the spina down through the lower leg and foot
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Synpase
Space through which a nerveous impulse is ransmited fro mone neuron to another or from a neuron to another cell, such as sucle or gland cell
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Artery
Carries oxygenated blood to body cells
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Capillary
single cell vessels that link arteries and veins, where gas exchange takes place
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Embolus
Foreign objects, gas, tissues, tumor or thrombus that circulates in blood stream
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Thrombosis
blood clot attached to wall of vein or artery
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Pleura
double folded membrane that surrounds the lungs
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Atelectasis
incomplete expansion of alveoli
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Paroxysmal
suddenlyl occurring
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Coagulation
blood clotting
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Edema
excess fluid from blood leaks ou into tissues causing local swelling
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Autonomic Nervous System
Nerves that control involuntary body functions of muscles, glands and internal organs
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Efferent nerves
carry messages away from the brain and spinal cord toward the motor nervse
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Myelin sheeth
Nerve cell that carries impulses throughout the body
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Parasympathetic nervous system
involuntary, autonomic nerves that regulate normal body functions such as Heart Rate, breathing, muscle of GI tract
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receptor
recieves a nervous stimulation fand passes it on the nerves within the body. Skin, Earts, Eyes and Tasted buds are receptors
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Sympathetic Nerves
Autonomic nerves that influence bodily functions involuntarily in times of stress
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Aneurysm
local widening of vessel
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Auscultation
listening for sound i nbody, usually thru a stethoscope
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Diastole
Relaxation phase of heart beat "dub"
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Systole
Contraction phase of heart Beat "lub"
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Vein
Carries deoxygnated blood to lungs
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Percussion
tapping on surface to determine the difference in density of underlying structure
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Effusion
escape of fluid from blood vessels or lymphatics into cavity or into tissue spaces
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Palliative
relieving symptoms but not curative
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Ecchymosis
Escape of blood from vessel into tissue (Brusing)
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Hemoblobin
blood protein containing iron, carries Oxygen. The substance in Red Blood Cells responsible for carrying Oxygen.
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arthr/o and articul/o
joint
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lumb/o
loins or lower back
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synov/o
synovial membrane
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acetabul/o
acetabulum or hip
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fibr/o
fibrous connective tissue
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myel/o
bone marrow or spinal cord
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spondyl/o and vertebr/o
vertebrae
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ten/o and tendin/o
tendon
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-asthenia
lack of strength
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-trophy
development or nourishment
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-blast
embryonic or immature cell
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