Neurological examination Flashcards
common components of neural exam
patient history, cranial nerve function, motor function, somatosensory function, coordination, mental status.
why understand handedness
lateralization
(left-handers can have crossed or mixed specialization for language - typically left hemisphere for right-handed)
disease process components
temporal profile, change over time, triggers/relievers, severity.
Cranial nerves
myelinated axons (white matter); can be afferent or efferent.
Cranial nerve I
Olfactory; sensory; smell information
Cranial nerve II
Optic; sensory; visual information
Oculomotor nerves
III, IV, VI
Cranial nerve III
Oculomotor; motor; 4/6 muscles that move eyes + eyelid movement
Cranial nerve IV (smallest)
Trochlear; motor; eye movement (only of trochlear muscle)
Cranial nerve V
Trigeminal; both motor and sensory; separates into 3 branches; facial sensation + biting, chewing, swallowing
Cranial nerve VI
Abducens; motor; eye movement (only of abducens muscle)
Cranial nerve VII
Facial; both sensory and motor; main motor output to facial expression + taste
Cranial nerve VIII
Auditory; sensory; hearing and vestibular sense (balance)
Cranial nerve IX
Glossopharyngeal;both motor and sensory; back of tongue taste + ability to speak and swallow
Cranial nerve X
Vagus; both motor and sensory; motor control of heart, lungs, viscera
Cranial nerve XI
accessory; motor; head rotation and shoulder movements
Cranial nerve XII
Hypoglossal; motor; tongue movement
testing sensory nerves
test sensation and symmetry
testing motor nerves
test use, use with resistance, touch for atrophy
snellen chart
standard visual acuity test
ptosis
droopy eyelid, problem with CN III
bell’s palsy
facial nerve problem; sudden weakness/paralysis on half the face, tend to go away naturally
upper motor neurons
brain to spinal cord
lower motor neurons
spinal cord to muscles