Neurological Assesement Flashcards
(45 cards)
What is CN I, and what does it do?
Olfactory nerve; controls smell and scent interpretation including peristalsis and salvation
What is CN II, and what does it do?
Optic nerve; controls vision, visual acuity and peripheral vision
What is CN III, and what does it do?
Oculomotor nerve; controls extraocular movements (up, down, medial), eyelid raising and pupil constriction
What is CN IV, and what does it do?
Trochlear nerve; extraocular movements (down-and-in)
What is CN V, and what does it do?
Trigeminal nerve;
(opthamolic branch) sensation to the cornea/conjuctiva/eyelids and eyebrows/nose,
(Maxillary branch) sensation to the cheek/lower eyelids/upper jaw/teeth/palate/pharynx
(Madibular branch) sensation to and movement of the lower jaw
What is CN VI, and what does it do?
Abducens nerve; lateral extraocular movement
What is CN VII, and what does it do?
Facial nerve; sensory info for the tongue (ant. ⅔) and soft palate, movement of the face
What is CN VIII, and what does it do?
Acoustic/Vestibulocochlear nerve; controls hearing abilities and the vestibular sense
What is CN IX, and what does it do?
Glossopharyngeal nerve; swallowing, speech, sensation in the tongue (post. ⅓), blood pressure monitering
What is CN X, and what does it do?
Vagus nerve; PNS innervation to liver, pancreas, intestins and salivary glands, stimulation of defication, constricting bronchioles, reducing heart rate and contraction
What is CN XI, and what does it do?
Spinal Accessory nerve; swallowing, speaking, shoulder shrug and head turning
What is CN XII, and what does it do?
Hypoglossal nerve; voluntary tongue movements
What type of information does each CN collect?
CN I - Sensory
CN II - Sensory
CN III - Motor
CN IV - Motor
CN V - Both
CN VI - Motor
CN VII - Both
CN VIII - Sensory
CN IX - Both
CN X - Both
CN XI - Motor
CN XII - Motor
What is the Glasgow coma scale?
A scale evaluating consciousness/awareness of a patient based on their ability to respond to presence, speech and touch
How do you evaluate CN I?
Occlude one naris and place a familiar scent near the open naris; patient should be able to distinguish unique scents from one another in both narises
How do you evaluate CN II?
Evaluate vision using the Snellen chart and Jaeger test; 20/20 vision and an ability to read all near text is expected
How do you evaluate CNs III, IV and VI?
Asses pupils for wobbling, constriction with light, and accommodation, asses the six cardinal directions
How do you evaluate CN V?
Patient should be able to identify dull, soft and sharp sensations on the face, patient should be able to make diverse facial expressions symmetrically and with ease, corneal reflex should be intact
How do you evaluate CN VII?
Patients should be able to identify distinct tastes throughout tongue, patient should be able to make diverse facial expressions symmetrically
How do you evaluate CN VIII?
Using the whisper, Rinne and Weber tests; whisper should be identifiable, BC < AC, symmetrical hearing
How do you evaluate CN IX?
Taste and swallowing are both intact when patient is presented with water and diverse tastes
How do you evaluate CN X?
Uvula and soft palatte raise symmetrically, gag reflex is intact
How do you evaluate CN XI?
Sternocleidomastoid and trapezius muscles are intact and symmetrical, no muscular weakness or asymmetry is observed
How do you evaluate CN XII?
Tongue should be able to move in all directions and pronounce distinct differences between “light, tight, dynamite”
