quick memorization Flashcards
Which nerves contribute to corneal reflex?
V1 (a) and 7 (e)
What do you see with a lesion of CN X?
uvula deviates away from side of lesion. Weak side collapses and uvula points away.
optic canal
CN 2
What do you see with a lesion of CN V motor?
Jaw deviates toward side of lesion due to unopposed force from the opposite pterygoid muscle
Rooting Reflex
Movement of head toward one side if cheek or mouth is stroked (nipple seeking)
foramen rotundum
V2
Which nerves contribute to lacrimation reflex?
V1 (a) and 7 (e)
metachromatic leukodystrophy
AR lysosomal storage disease; deficiency arylsulfatase A deficiency; destruction of myelin sheath; ataxia and dementia
Does CN 10 carry sensory/motor/both
Both
cribiform plate
CN 1
internal acoustic meatus
CN 7, 8
What is the function of the nucleus aMbiguus and which CN contribute?
Motor innervation of pharynx, larynx, upper esophagus (swallowing, palate elevation); 9, 10, 11
Palmar Reflex
Curling of fingers if palm is stroked
What is the function of the nucleus Solitarius and which CN live there?
Visceral Sensory information (taste, baroreceptors, gut distention); CN 7, 9, 10
Charco-Marie-Tooth Disease
AD defective nerve/myelin sheath proteins; AD and associated with foot deformities (pes cavus)
Which nerves contribute to jaw jerk reflex?
both V3
Plantar Reflex
Dorsiflexion of large toe and fanning of other toes with plantar stimulation
Babinski sign - presence of this reflex in an adult, which may signify a UMN lesion
What do you see with CN XI lesion?
Weakness turning head to contralateral side of lesion (SCM). Shoulder droop on side of lesion (trapezius)
Suckling Reflex
Sucking response when roof of mouth is touched
Does CN 2 carry sensory/motor/both
Sensory
Galant Reflex
Stroking along one side of the spine while newborn is in ventral suspension (face down) causes lateral flexion of lower body toward stimulated side
Which nerves contribute to gag reflex?
9 (a) and 10 (e)
foramen spinosum
middle meningeal artery
Does CN 7 carry sensory/motor/both
Both
hypoglossal canal
CN 12
foramen ovale
V3
What do you see with CN XII lesion?
LMN lesion. Tongue deviates toward side of lesion (lick your wounds) due to weakened tongue
progressive multifocal leukoencephalopathy
destruction of oligodendrocytes; AIDs patients due to reactivation of latent JC virus; rapidly progressive and fatal; + risk with natalizumab, rituximab
Krabbe disease
AR lysosomal storage disease; deficiency of galactocerebrosidase; destruction of myelin sheath; peripheral neuropathy, developmental delay, optic atrophy, globoid cells
which outlets do CN V1, V2, V3 come out of
superior orbital fissure, foramen rotundum, foramen ovale (SRO)
jugular foramen
CN 9, 10 ,11
Whats the mneumonic to remeber this?
Some Say Marry Money But My Brother Says Big Brains Matter Most
Which nerves contribute to pupillary reflex?
2 (a) and 3(e)
superior orbital fissure
CN 3, 4, V1, 6
Moro Reflex
“Hang on for life” reflex - abduct/extend arms when startled, and then draw together
