Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
97 Cards in this Set
- Front
- Back
Cerebral Cortex:
Frontal ‐ |
personality, emotion, behavior, intellect
|
|
Cerebral Cortex:
Parietal ‐ |
sensation
|
|
Cerebral Cortex:
Occipital ‐ |
vision
|
|
Cerebral Cortex:
Temporal |
auditory
|
|
Cerebral Cortex:
Werenike’s |
temporal associated w/auditory
reception , damage = aphasia |
|
Cerebral Cortex
Broca’s |
frontal lobe mediates speech , damage =aphasia
|
|
Cerebral Cortex
Basal Ganglia |
primitive motor areas, automatic
ass’t movement |
|
Cerebral Cortex
Thalamus ‐ |
relay station
|
|
Cerebral Cortex
Hypothalamus |
temp control, sleep center
|
|
Cerebellum: located under
|
occipital lobe
|
|
Cerebellum:
controls 4 points |
– motor coordination of voluntary movements
– equilibrium, muscle tone – coordinates movement – operates entirely below conscious level |
|
– Brain Stem ‐ central core
3 parts |
• Midbrain
• Pons • Medulla |
|
Spinothalamic Tract:
lateral tract = |
pain, temperature
|
|
Spinothalamic Tract:
anterior tract = |
crude or light touch
|
|
Posterior Columns:
control 3 things |
• position ‐ proprioception
• vibration • tactile discrimination |
|
Corticospinal / Pyramidal
3 points |
• voluntary movement ‐ skilled, purposeful, discrete
• cross to other side • higher level ‐ body map |
|
Major Motor Pathways:
Extrapyramidal |
older, lower level , all fibers outside above
• muscle control, gross automatic movements |
|
Major Motor Pathways:
Cerebellar |
• coordinates movement, equilibrium, posture
|
|
Nerves outside CNS
• Carry input to CNS via |
sensory afferent fibers
|
|
Deliver output from CNS
|
via motor efferent
fibers |
|
cranial nerves mneumonic
|
ooo to touch adn feel virgin girls viginas sounds hot
some say marry money but my brother says bad bitches marry money |
|
Dorsal ___________ root
|
(afferent)
|
|
Ventral__________ root
|
(efferent)
|
|
C6 –
|
thumb
|
|
T4 –
|
nipple line
|
|
T10 –
|
umbilicus
|
|
L5 –
|
top of foot
|
|
S1
|
bottom of foot
|
|
S2-S4
|
perineum
|
|
Neuro Sympathetic
|
Pupils dilate
Incr awareness |
|
Neuro Parasympathetic
|
Normal pupils
|
|
CV Sympathetic
|
Inc: HR, BP,
cardiac motility |
|
CV Parasympathetic
|
Dec HR, cardiac
motility |
|
Resp Sympathetic
|
Inc RR,depth &
dilation |
|
Resp Parasympathetic
|
bronchial constriction
|
|
GI Sympathetic
|
Dec GI motility
Gastric secretions Inc glycogenolysis Dec insulin prod Sphincter contraction |
|
GI Parasympathetic
|
Inc gastric
Motility,gastric secretions, sphinc dilation |
|
GU Sympathetic
|
Dec urine output &
Renal blood flow |
|
GU Parasympathetic
|
Normal urine
output |
|
Reflex Arc:
|
Defense mechanism of the nervous system
– operates below consciousness – permits quick reaction to potentially painful or damaging situations – Simple – DTR |
|
Infant Assessment:
Abnormalities present as |
‘failure to do”
|
|
DDST
|
Normative measure of development is
the developmental quotient Developmental Quotients >85 normal 70‐85 possibly delayed; follow needed <70 delayed |
|
Fluent aphasia –
|
“Wernicke’s” ‐injury to temporal or
parietal lobe ; talk & read easily but words nonsensical, jumbled, meaningless |
|
Nonfluent aphasia‐
|
“Broca’s”‐ frontal lobe lesion:
struggle w/words, slow, monosyllabic |
|
Obtunded:
|
sleeps most of the time, makes
few spontaneous movements, vigorous shaking & name calling required ‐ capable of verbal response but likely inappropriate |
|
Stuporous:
|
semi‐comatose, unconscious most
of time, strong painful stimuli required for w/ drawl response |
|
Comatose
|
can not be aroused
|
|
anosmia
|
(Greek a –lack of & osme sense of smell) loss
from smoking, cocaine allergic rhinitus, asymmetric loss ‐ significant |
|
hemianopsia
|
defect in peripheral vision ‐
|
|
Olfactory I : test
|
occlude 1 nares at a time and assess patency
– with eyes closed and 1 nares occluded present aromatic substance for identification – repeat with other nares – Norm; + identification or decreased bilaterally w/aging |
|
Optic ‐ II test
|
Visual Acuity
– Visual Fields by confrontation – Ocular Fundus by Opthalmoscope |
|
Oculomotor III, Trochlear IV, Abducens VI
test |
test pupils for size, regularity, equality, reaction,
accommodation – test extraoculomotor movement |
|
Trigeminal V: motor
|
palpate temporal & masseter
muscles ‐ clench teeth |
|
Trigeminal V:Sensory Function:
|
w/eyes closed touch face w/lt
touch ophthalmic, maxillary, mandibular |
|
Trigeminal V:
Corneal Reflex: |
touch cornea w/wisp of cotton
• NORM: blink bilaterally • ABN: no blink |
|
Facial VII: Motor:
|
note mobility & symmetry when Pt smiles, frowns,
closes eye tightly against resistance, lift eyebrows, shows teeth, puff out cheeks • ABN muscle ABN: weakness, loss of symmetry, Bell’s Palsy |
|
Facial VII: Sensory:
|
apply to tongue w/applicator a sweet, salt & sour
flavor • NORM: identify taste • ABN: loss of taste |
|
Bell’s Palsy
Main symptom |
paralysis or weakness on one side of the face, along with a sagging
eyebrow and difficulty closing the eye |
|
The exam for CN 7 palsy is remembered by the
mnemonic COWS: |
C lose your eyes
O pen (PCP tries to open patient's eyes) Wrinkle your forehead S mile |
|
Acoustic VIII test
|
Vestibular dysfunction
– test hearing acuity w/ Weber, Rinne – ABN: decrease or loss of hearing, conduction or sensorial |
|
Glossopharyngeal IX, Vagus X:
– Motor |
Depress tongue w/blade note pharyngeal
movement as Pt says “AHHH”, touch posterior pharyngeal wall for gag reflex, Note voice smooth or strained, swallowing |
|
Spinal Accessory XI: test
|
examine sternomastoid & trapezius for equal
strength – Rotate head forcibly against resistance – Shrug shoulders against resistance – NORM: equal on both sides – ABN: atrophy, muscle weakness, paralysis |
|
Hypoglossal XII:
test |
inspect tongue, have
Pt stick tongue out and move side to side, repeat “ light, tight, dynamite’ – NORM: full movement, clear distinct tones – ABN: atrophy, fasciulations, deviation of tongue |
|
Decerebrate rigidity:
|
rigid & sustained contracture of
extensor – midbrain & pontine damage |
|
Decorticate rigidity:
|
rigid & sustained hyperflexion –
lesions that interfere w/corticospinal tract |
|
Pronator Drift:
|
downward drifting may indicate
hemiparesis or IICP |
|
Meningeal Irritation
General signs |
Violent headache
– Photophobia – Fever – Nausea/vomiting – Decreased loc & convulsions |
|
Nuchal rigidity
|
W/pt in supine position flex neck
– Resisting this movement is a + sign for irritation: meningitis by bacteria, virus,fungi, mycobacteria |
|
Meningeal Irritation
Kernig’s sign |
Pt in recumbent position, flex hip & flex @ knee,
attempt to extend knee – + is resistance to extension & pain (spasm of hamstring) reliable sign of irritation(r/o HD) |
|
Acoustic VIII test
|
Vestibular dysfunction
– test hearing acuity w/ Weber, Rinne – ABN: decrease or loss of hearing, conduction or sensorial |
|
Glossopharyngeal IX, Vagus X:
– Motor |
Depress tongue w/blade note pharyngeal
movement as Pt says “AHHH”, touch posterior pharyngeal wall for gag reflex, Note voice smooth or strained, swallowing |
|
Spinal Accessory XI: test
|
examine sternomastoid & trapezius for equal
strength – Rotate head forcibly against resistance – Shrug shoulders against resistance – NORM: equal on both sides – ABN: atrophy, muscle weakness, paralysis |
|
Hypoglossal XII:
test |
inspect tongue, have
Pt stick tongue out and move side to side, repeat “ light, tight, dynamite’ – NORM: full movement, clear distinct tones – ABN: atrophy, fasciulations, deviation of tongue |
|
Decerebrate rigidity:
|
rigid & sustained contracture of
extensor – midbrain & pontine damage |
|
Decorticate rigidity:
|
rigid & sustained hyperflexion –
lesions that interfere w/corticospinal tract |
|
Pronator Drift:
|
downward drifting may indicate
hemiparesis or IICP |
|
Meningeal Irritation
General signs |
Violent headache
– Photophobia – Fever – Nausea/vomiting – Decreased loc & convulsions |
|
Nuchal rigidity
|
W/pt in supine position flex neck
– Resisting this movement is a + sign for irritation: meningitis by bacteria, virus,fungi, mycobacteria |
|
Meningeal Irritation
Kernig’s sign |
Pt in recumbent position, flex hip & flex @ knee,
attempt to extend knee – + is resistance to extension & pain (spasm of hamstring) reliable sign of irritation(r/o HD) |
|
Meningeal Irritation
Brudzinski sign |
– Passively flex neck forward to chest
– + response is flexion of 1 or both legs to pelvis arms may also flex |
|
– Romberg’s test:
|
• Stand w/feet together and arms at sides, close
eyes & hold position for 20 sec • NORM: able to hold w/no or minimal sway • ABN: + Romberg = sways, falls, must widen base of feet to stop fall indicates MS, ETOH, loss of proprioception & vestibular function |
|
Rapid Alternating Movement RAM:
|
Pat knees w/ both hands with increasing speed
• NORM: equal turning & quick rhythmic pace • ABN: lack of coordination, slow, clumsy , sloppy response seen w/ cerebellar disease |
|
Neuro Assessment ‐ Sensory Sys
• Spinothalamic tract: Pain; Temperature: Light touch; |
Pain; perceive pin prick, “sharp” vs. “dull”
– Temperature: fill 2 test tubes w/warm or cold water, place – Light touch; wisp of cotton • eyes closed • random, unpredictable order |
|
Spinothalamic tract:
Hyperesthesia: |
increased or altered cutaneous
sensitivity to touch, pain or temperature |
|
Spinothalamic tract:
Hypoesthesia: |
decreased cutaneous sensitivity to
touch, pain or temperature |
|
Spinothalamic tract:
Analgesic: |
absence of cutaneous sensitivity to
touch, pain or temperature |
|
Posterior Column:
– Position ‐ Kinesthesia: |
tests ability to perceive
passive movements of extremities |
|
Posterior Column:Tactile Discrimination ‐ Fine
Touch – Stereogenisis – Graphesthesia – Two‐Point Discrimination – Extinction – Point location ABN: indicates |
inability to perform indicates lesion of
sensory cortex or posterior colum |
|
Reflex Response:
4-0 |
4+ very brisk hyperactive w/clonus = disease
– 3+brisker than average, may indicate disease – 2+average, normal – 1+ diminished, low normal – 0 no response = SC damage |
|
• Achilles S1 to S2: “ ankle jerk” Hold foot in
dorsi‐flexion & strike tendon directly – N = plantar flexes against hand – can see slowed relaxation phase in _______________ |
hypothyroidism
|
|
Pathological Reflexes:
– Grasp: abn after infancy |
Frontal lesion on contralateral side
|
|
Snout: puckering of lips‐ abn after infancy
|
Amyotrophic lateral sclerosis(ALS)
|
|
Glabellar: hyperactive blinking response w/tap to
forehead |
Lesion to pons, Parkinson’s
|
|
Sucking: abn after infancy
|
Bifrontal disease
|
|
Pathological Reflexes:
– Clonus: |
Upper motor neuron disease,
preeclampsia |
|
Babinski: norm in infancy until 15‐18
months |
Abn: fan great toe w/toes abduct –
lesions pyramidial tract‐ stroke/trauma |
|
Testing for clonus
|
Support knee in slightly flexed position
Quickly dorsiflex foot & hold in that position + = rhythmic oscillation of involuntary muscle contraction |