Cranial Nerves Flashcards
Parosmia is
distorted sense of smell
Direct light reflex tests CN
2,3
Indirect light reflex aka
consensual CN 2,3
Strabismus is
deviation of one or both eyes
Ptosis is
eyelid droops due to weakness or paralysis of elevator palpebrae
Six Cardinal fields of gaze tests CN
3,4,6 LR6SO4/3
Trochlear nerve innervates what muscle
Superior Oblique
What way does the Superior Oblique move the eye
Down and In
Corneal reflex tests
CN5 Afferent
CN7 Efferent
Jaw jerk reflex tests what CN
CN5
Oculocardiac reflex tests
CN5 Afferent
CN10 Efferent
General sensation to the anterior 2/3 of the tongue is from
Trigeminal nerve CN5
Abducens innervates
Lateral rectus muscle
Taste on the anterior 2/3 of tongue is from
CN7 Facial nerve
Bells palsy is always
UNILATERAL
how to tell if stroke or Bells palsy on forehead
FOREHEAD WRINKLES DURING STROKE
During stroke which eye losing motor control
contralateral eye
Gag reflex tests what CN
CN9 Afferent
CN10 Efferent
Carotid reflex tests what CN
CN9 Afferent
CN10 Efferent
Taste of the posterior 1/3 of the tongue is done by
glossopharyngeal, CN9
If there is a lesion of the Vagus nerve the uvula and palate deviate to which side
opposite side of the lesion when patient says “AHHHH”
Lesion of CN12 presents as
deviation to the side of the lesion by the tongue
Westphal’s sign is
absence of any DTR, especially patellar (LMNL)
What is the Wexlar scale
used for grading deep tendon reflexes
Bicep nerve innervation and nerve root
musculocutaneous, C5
Brachioradialis nerve innervation and nerve root
Radial C6
Triceps nerve innervation and nerve root
Radial, C7
Patellar nerve innervation and nerve root
femoral, L4
Medial Hamstring nerve innervation and nerve root
Sciatic, L5
Achilles nerve innervation and nerve root
tibial, S1
Ciliospinal reflexes is via
sensory from neck,
Cervical sympathetics
Study page 4!!!!!
NEED TO KNOW UMNL vs. LMNL
Presence of a Pathological reflex indicates a
UMNL
Chaddock reflex is performed
stroke lateral malleolus to fifth toe
Gordons is performed by
squeeze the calf below the knee
Schaefer is performed by
squeeze the Achilles tendon
Rossolimo is performed by
tapping the ball of the foot-plantar flexion of great toe with curling of other toes