36 terms

Nervous system

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Central nervous system
brain and spinal cord
peripheral nervous system
all nerves besides brain and spinal cord
autonomic nervous system
controls involuntary functions of the body
sympathetic nervous system
responds during times of emergencies
sensory neuron
receives and carries messages to CNS
motor neuron
carries messages from CNS to working muscles and tissue
axon
carry impulse to from the cell body to the dendrite
synapse
the gap between neurons that the messages must jump over
cortex
surface of the brain
convulutions
folds and wrinkles in the cortex
menignes
3 protective coverings around the brain and spinal cord
hemisphere
two sides of the brain
reflexes
messages are relayed to the motor neurons before it reaches the brain
E.E.G
test to measure brain activity
concussion
bruising of the brain
myelin sheath
fatty tissue surrounding the axon
epilepsy
electrical in balance in the brain (seizures)
rabies
viral infection of the CNS
found in saliva of infected animals
multiple sclerosis
myelin sheath around nerve fibers is destroyed
Alzheimer's
brain cells are gradually destroyed
encephalitis
inflammation of the cells of the brain
which is deadly bacteria or virus
bacteria
cerebral palsy
results from damage done to the brain at or before birth
C.A.T scan
measures density of the brain
cerebrum
principle part of the brain- voluntary functions of the body
cerebellum
helps coordinate muscle movement
brain stem
controls involuntary functions
parasympathetic
nervous system returns its body back to its normal state
grand mal seizure
longer seizure lasting for 2-5 mins
petite mal seizure
lasts a few seconds
seizure
burst of uncontrolled electoral impulses
DO's of a seizure
move things out of the way, put something soft under their head, call for help, allow them to rest after seizure
DONT's of a seizure
hold them down, put anything in their mouth, give them food or drink
down syndrome
47 chromosomes not 46
right brain / left brain
musical, art,
logic, numbers
sings of a concussion
loss of consciousness
unequal pupil size
vomiting
can't maintain balance
loss of memory