Neurologic system Flashcards
Cranial nerve I: ________ (sensory)
- Function?
- Abnormal?
Olfactory
Smell
Anosomia: possible causes include upper res infection; tobacco/cocaine; fracture of cribriform plate or ethmoid area; frontal lobe lesion. tumor in olfactory bulb or tract
Cranial nerve II: ______(sensory)
*Function?
Optic
vision
Cranial nerve III: __________ (mixed)
*Function?
Oculomotor
Motor-most EOM movement, opening of eyelids
parasympathetic-pupil constriction, lens shape
Cranial nerve IV: ________ (motor)
*Function?
Trochlear
Down and inward movement of eye
Abnormal: caused by fracture of orbit, or brainstem tumor
Cranial nerve V: __________ (mixed)
*function?
Trigeminal
motor: muscles of mastication
sensory: sensation of face and scalp, cornea, mucous membranes of mouth and nose
Cranial nerve VI: _________ (motor)
*function?
Abducens
Lateral movement of eye
abnormal: failure to move side to side, diplopia on lateral gaze. from brainstem tumor or trauma, fracture to orbit.
Cranial nerve VII: ________ (mixed)
*function?
Facial
motor: facial muscles, close eye, labial speech, close mouth. (abnormal: bell’s palsy (LMN) causes paralysis of entire half of face)
sensory: taste (sweet, sour, salty, bitter) on anterior two thirds of tongue (UMN lesions (stroke, tumor, inflam) cause of paralysis of lower half of face.
parasympathetic: saliva and tear secretion
Cranial nerve VIII: _________ (sensory)
*Function?
Acoustic
hearing and equilibrium
Cranial nerve IX: _____________ (mixed)
*Function?
Glossopharyngeal
motor: pharynx (phonation and swallowing)
sensory: taste on posterior one third of tongue, pharynx (gag reflex)
parasympathetic: parotid gland, carotid reflex
Cranial nerve X: ________ (mixed)
*Function?
Vagus
motor: pharynx and larynx (talking and swallowing) abnormal: bilateral cranial nerve X lesion, dysphagia, fluids regurgitate through nose.
sensory: general sensation from carotid body, carotid sinus pharynx, viscera
parasympathetic: carotid reflex
Cranial nerve XI: ______ (motor)
*Function?
Spinal
movement of trapezius and sternomastoid muscles
abnormal: absent movement: neck injury, torticollis
Cranial nerve XII: ___________ (motor)
*Function?
hypoglossal
Movement of tongue.
abnormal: deviates to one side (LMN lesion), slowed rate of mvmt (bilateral upper motor neuron lesion)
The subjective data includes: ______, head injury, dizziness/vertigo, _______, tremors, weakness, _________, numbness or tingling, difficulty swallowing, difficulty speaking, significant past history, environmental/occupational hazards
headache
seizures
incoordination
True ______ is rotational spinning caused by neurologic disease in the vestibular apparatus in the ear or in the vestibular nuclei in the brainstem
vertigo
- room spins: objective
- you are spinning: subjective
** make sure to distinguish from dizziness
Any weakness or problem moving any body part? generalized or local? does it occur with particular mvmt? for example proximal or large muscle weakness, is it hard to get out of bed, or reach for an object? for small or distal…is it hard to open a jar, write, walk without tripping?
- Paresis is a partial or incomplete paralysis
- Paralysis is a loss of motor function due to a lesion in the neurologic or muscular system or loss of sensory innervation
Any problems with coordination? balance?, any falling? which way? Do you legs seem to give way?
Dysmetria is the inability to control the distance, power, and speech of a muscular action
Any numbness or tingling in any body part? does it feel like pins and needles? Onset?does it occur with activity?
Paresthesia is an abnormal sensation (e.g burning, tingling)
Any problem speaking with forming words or with saying what you intended to say? Onset, how long?
Dysarthria is difficulty forming words; dysphasia is difficulty with language comprehension or expression
For the aging adult: any problems with dizziness? does this occur when you first sit or stand up, head mvmt, walk after eating? occur with any medications?
diminished cerebral blood flow and diminished vestibular response may produce staggering with position change, which increases risk for falls.
For aging men. do you ever get up at night and then feel faint while standing to urinate?
micturition syncope
For aging adult: have you noticed any decrease in memory, change in mental function? any confusion? did this come on suddenly or gradually?
Memory loss and cognitive decline are early indicators of alzheimer disease and can be mistaken for normal cognitive decline of aging
For aging adult:
- Have you ever noticed any tremors? hands, face? worse with anxiety, activity, rest? What is it relieved by?
- Any sudden vision change, fleeting blindness? occur with weakness/ loss of consciousness?
- Senile tremor is relieved by alcohol, but this is not a recommended treatment. assess if abusing alcohol in effort to relieve tremor.
- With any vision changes screen for symptoms of stroke
A complete neurologic exam includes mental status, _____ nerves, motor system, ______ system, reflexes.
cranial
sensory
For cranial nerve I (Olfactory), do not test routinely.
- Test in those who report loss of smell, those with head ____, and those with abnormal mental status, and when the presence of a intracranial _____ is suspected.
- First assess _______ by asking pt to occlude one nostril at a time and to sniff, then with person’s eye closed, present an ______ substance (Coffee, toothpaste, vanilla)
Trauma
lesion
patency
aromatic
One cannot test smell when air passages are occluded with upper _____ infection or with ________.
respiratory
sinusitis
_______: Decrease or loss of smell occurs bilaterally with tobacco smoking, allergic rhinitis, and cocaine use.
*Unilateral los of smell in the absence of nasal disease in ______ anosmia
Anosmia
Neurogenic
To test cranial nerve II (Optic): test visual ____ and test visual fields by _________.
*_______ with increased intracranial pressure; optic atrophy.
acuity
confrontation- Stand in front of pt, 2 ft away. direct pt to cover one eye with an opaque card, and with the other eye to look straight at you. cover your own eye opposite to the person’s covered one. You are testing the uncovered eye. Hold your finger in front and advance from the periphery in several directions.
papilledema
To test cranial nerves III (oculomotor), IV (trochlear), and VI (Abducens):
- Palpebral fissures are usually equal in width or close.
- Ptosis (drooping) occurs with _______ gravis, dysfunction of cranial nerve III or ______ syndrome
- Check pupils for size, regularity, equality, direct and consensual light reaction, and ________. Increasing intracranial pressure causes a sudden, unilateral, dilated, and ________ pupil.
- Assess _______ mvmt by the cardinal positions of gaze. Strabismus (deviated gaze) or limited mvmt. Nystagmus (back and forth oscillation of the eyes). These occurs with disease of the _______ system, cerebellum, or brainstem.
Myasthenia Horner accomodation nonreactive extraocular vestibular
To test Cranial nerve V (Trigeminal)
Motor: Assess the muscles of _______ by palpating the ______ and masseter muscles as the person clenches their teeth.
*indicates decreased strength on one or both sides, ______ in jaw movement, or pain with clenching of teeth.
Sensory: Have pt close eyes, test ____ _____ sensation by touching with cotton wisp to 3 areas on each side of face (forehead, cheeks, and chin).
-Ask the person to say “now” whenever the touch is felt. This test all three divisions of the nerve 1.) ophthalmic, 2.) maxillary, and 3.) mandibular.
*decreased of unequal sensation. with a _____, sensation of face and body is lost on the opposite side of the lesion.
mastication temporal asymmetry light touch stroke
To test Cranial nerve VII (Facial):
Motor function: note mobility and facial symmetry as the person responds to these requests: smile, frown, close eyes tightly, lift eyebrows, show teeth, and puff cheeks
Sensory function: do not test routinely, only when you suspect a facial nerve injury.
Abnormal::
- Muscle weakness is shown by flattening of the nasolabial fold, drooping of one side of the face, lower eyelid sagging, and escape of air from only one cheek that is pressed in.
- Loss of mvmt and asymmetry of mvmt occur with both CNS lesions (e.g. brain attack or stroke that affects the lower face on one side) and PNS lesions (e.g. bell’s palsy that affects the upper and lower face on one side)
To test cranial nerve VIII (acoustic/vestibulocochlear): test hearing acuity by the ability to hear normal conversation and by what other test?
whispered voice test
To test cranial nerves IX (glossopharyngeal) and X (vagus):
*Motor: Depress the tongue with a tongue blade, and note pharyngeal movement as the person says “ahh” or yawns; the _____and soft palate should rise in the midline, and the tonsillar pillars should move medially. Also note gag reflex (hypo, hyper, absent). note voice sounds smooth and not strained.
- absence or asymmetry of soft palate mvmt or tonsillar pillar movement. Following a stroke, dysfunction in swallowing may increase risk for aspiration
- hoarse or brassy voice occurs with vocal cord dysfunction; nasal ____ occurs with weakness of soft palate.
*Sensory: Cranial nerve IX does mediate taste on the ______ 1/3 of the tongue, but technically, the sensation is to difficult to test.
uvula
twang
posterior
To test cranial nerve XI (spinal): examine the _________ and trapezius muscle for for equal in size.
*Ask pt to rotate head and shrug shoulders against resistance.
Abnormal findings: ______, muscle weakness or paralysis occurs with a stroke or following injury to the peripheral nerve (e.g. surgical removal of lymph nodes)
Sternomastoid
atrophy
To test cranial nerve XII (hypoglossal): inspect the _____. No wasting or tremors should be present. Ask pt to say “light, tight, dynamite”, and note the lingual speech
Abnormal:
- Atrophy
- _________ (muscle twitch).
- Tongue deviates to side with lesions of the hypoglossal nerve (when this occurs, deviation is toward the paralyzed side)
tongue
fasciculations
To assess motor system: inspect and palpate for size, strength (test muscle groups), tone (move extremities through passive ROM).
Abnormal: size:: Atrophy-abnormally small muscle with wasted appearance; occurs with ______, injury, _____ motor neuron disease such as polio, diabetic neuropathy. Hypertrophy-increased size and strength; occurs with _______ exercise.
Strength: paresis or weakness is diminished strength; paralysis or plegia is absence of _______.
Tone:
- Limited ROM
- Pain with motion
- _______- decreased resistance, hypotonia occur with peripheral weakness.
- spasticity and rigidity- types of increased resistance that occur with central weakness.
disuse lower isometric strength flaccidity
- Assess cerebeller function by inspecting gait for balance, should be ______, arm-swing should be opposite, stepping coordination, and rhythm.
- Abnormal: Stiff, immobile posture. _______ or reeling. wide base of support. Lack of arm swing or rigid arms. Unequal rhythm of steps. slapping of food. scraping of toe of shoe. _____-uncoordinated or unsteady gait.
- Inspect gross motor & balance function
- _____ walking (toe to heal): abnormal: crooked line of walk. widens base to maintain balance. staggering, reeling, loss of balance. An ataxia that did not appear with regular gait may appear now. inability to tandem walk is sensitive for an ______ motor neuron lesion, such as MS, and for acute cerebellar dysfunction, such as ______ intoxication
- tip-toe walking
- heel walking
- Abnormal: muscle weakness in the legs prevents this.
- Inspect Romberg test (pt balance for 20 seconds). Abnormal: a positive test occurs with cerebellar ataxia (MS, Alcohol intox, loss of ______, and loss of vestibular function)
- Inspect RAM (rapid alternating mvmt). Abnormal: lack of coordination. slow clumpsy, and sloppy response is termed Dysdiadochokinesia and occurs with ______ disease.
smooth staggering ataxia tandem upper alcohol prioception cerebellar
______ is a clumsy mvmt with overshooting the mark and occurs with cerebellar disorders or acute alcohol intoxication.
____- ________ is a constant deviation to one side.
______ tremor when reaching to a visually directed side.
Dysmetria
past-shooting.
intention
To assess the sensory system by testing bilateral perception of each of these tests:
- ) ______ pain (use tongue blade, tear and half and use sharp and dull end to test pt in multiple spots)
- ) ____ touch: use cotton against skin, ask pt to tell when felt
- ) _______: use tuning fork on foot to test distal areas, if felt, can stop test.
- ) _______ (position/motion sense): hold fingers. ask pt to say whether up or down. abnormal: loss of position sense. problems with tactile discrimination (fine touch) occurs with lesions of the sensory cortex or posterior column
- ) ________ (object recognition)
- ) ________ (# recognition) use end of hammer to write a diff # on each hand
- ) Two-point discrimination: apply two sharp points of tongue blade and note the distance at which person no longer perceives two separate points.
- ) _____- use 2 sharp ends of tongue blade and see if pt can distinguish if they feel one or two. Abnormal: sensory cortex lesion (for all of these tests). the stimulus is extinguished on the side opposite the cortex lesion
- ) Point Location- Touch the skin, and ask pt to put your finger where I touched you.
Superficial light vibration Kinesthesis Stereognosis Graphesthesia Extinction
Decreased pain sensation: _______
Hypoalgesia
Absent pain sensation: __________
analgesia