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Download Chapter 14 Nervous System | HEED 101 - Medical Terminology and more Quizzes Medical Sciences in PDF only on Docsity!
CNS
central nervous system
TERM 2
PNS
DEFINITION 2
peripheral nervous system12 pairs cranial nerves31 pairs
spinal nerves
TERM 3
ANS
DEFINITION 3
has 2 divisions:sympatheticparasympathetic
TERM 4
sympathetic division
DEFINITION 4
speed up blood pressure, heart ratefight or flight response
TERM 5
parasympathetic division
DEFINITION 5
decreases blood pressure, heart ratepromotes digestion
nerve fibers
long axon (from motor neurons) or peripheral process (from
sensory neuron)
TERM 7
nerves
DEFINITION 7
bundle of nerve fibers3 types:sensory or afferentmotor or
efferentmixed
TERM 8
sensory/afferent nerves
DEFINITION 8
conducting info to CNS(smell, taste, pain, hot)
TERM 9
motor/efferent nerves
DEFINITION 9
conducting info to muscles, organs, glands
TERM 10
mixed nerves
DEFINITION 10
mixture of afferent/efferent fibers
cerebrum
sensory/motor activityemotion, think, feelingmajor structure
TERM 17
cerebellum
DEFINITION 17
movement (coordination)involuntary/voluntary complex
patterns
TERM 18
ataxia
DEFINITION 18
hard to walk
TERM 19
diencephalon
DEFINITION 19
made of thalamus and hypothalamus
TERM 20
thalamus
DEFINITION 20
relay center for different impulses
hypothalamus
produce hormones
TERM 22
brainstem
DEFINITION 22
midbrain, pons, medulla oblongata
TERM 23
midbrain
DEFINITION 23
visual reflexes, sense of hearing
TERM 24
pons
DEFINITION 24
connects the cerebellum and medulla to higher areas of the
brain (relay center)
TERM 25
medulla oblongata
DEFINITION 25
connects brain to spinal cord(breathing, heartbeat,
swallowing, blood pressure)
vagus nerve
(X)
longest of cranial nervesinnervates/seen in tissue of throat,
heart, stomach etc.vagotomy: cut vagus nerve
TERM 32
Alzheimer's disease
DEFINITION 32
most common cause of dementia (out of mind)physical and
mental problems
TERM 33
encephalitis
DEFINITION 33
inflammation of the brain itselfcan kill/disableviral or
bacterial infection can cause this
TERM 34
meningitis
DEFINITION 34
same as encephalitis except it is inflammation of the
meningescommon sign: stiff neck
TERM 35
epilepsy
DEFINITION 35
brain disorder involving many different seizuresmajority of
cases are idiopathic (without a known cause)
multiple sclerosis
affects brain/spinal cordattacks proteins in myelin
sheathvaries in severity (affects you from head to toe)
TERM 37
parkinson's disease
DEFINITION 37
degeneration of nerve cells that control movementdecreased
levels of dopaminesigns and symptoms:tremor, bradykinesia,
akinesia, stooped posturetreatment:increase dopamine
levels, inhibit effects of acetycholine, DBS, pallidotomy
TERM 38
stroke
DEFINITION 38
third leading cause of death
TERM 39
CVA
DEFINITION 39
cerebrovascular accident
TERM 40
TIA's
DEFINITION 40
transient ischemic attackweakness in limbs, temporary loss
of eyesight, weakness in face
