Neuro PowerPoint Flashcards
nerves are covered by
meninges
when is nervous system formed
first trimester
12 wks
any insult can cause CNS malformation in gesation
- what is some eamples
decrease blood circulation
maternal HTN
illness
bleeding
when are nerve cells matured
4 years
when does the brain stop growing
21-25 years
when mylenation is increased what is decreased
primary reflexes
- tonic neck, moro, root
when should tonic neck, root, and moro be gone
6 mo
when mylenation occurs what increases or improves
fine and gross motor
why are the cranial bones not completely ossified
allows for brain growth
when does the post fontanelle close
2-3 mo
when does the ant fontanelle close
12-18 mo
the skull and brain grow and develop rapidly during childhood so infants and young children are at higher risk for
injury
muscle around neck and spinal cord is not fully developed so head is
heavy
are the vertebrae completely ossified
no
when do stuture lines between skull bones close
age 12
top heavy and excessive spinal mobility puts them at risk for
falls and shaken baby syndrome
absent seizures
staring blankly
what is the most important indicator of neurological dysfuncton
LOC
decorticate
flexor, rigid, lesions above the brain stem and cortical spinal tract
what is contraindicated in increase ICP
spinal tap
early signs of increase ICP
headache
visual changes
N/V
pupils unequal or slow
early signs of increase ICP
- infants
increase head circumference
bulging fonatalle
separating of sutures
late signs of increase ICP
LOC cecrease
Cushing triad
- Brady
- irregular resp
- widening pulse pressure
fix and dilated pupils
hypertension
late signs of increase ICP
- intants
sunset eyes
scalp veins proturding
pos babinski
what is a seizures
abonormal electrical discharge from the Brian that causes involuntary movement and behavior
different types of seizures
absent
partial
generalized
febrile
absent seizure
lip smacking and twictchin
loss of LOC
partial seizure
one side affected and opposite side will have symptoms
depend on location of insult
generalized
diffuse electrical activity on both hems, entire body involved
febrile
over 101 or 38.3
6mo to 5 year
rarely occur more than once in 24 hour
why do febrile seizures occur
due to Childs immature nervous system
partical s/s
abrupt start
unprovoked
aura
generalized s/s
aura
tonic clonicto
tonic
contraction
clonic
extension
staus epi
acute lasts over 30 min
check lytes, bp, and bs