Cranial Nerves Flashcards
(71 cards)
Cranial nerves
12 pairs, serve head and neck
Cranial nerves mnemonic
Oh Oh Oh To Touch And Feel Very Good Velvet, AH
Olfactory numerical
I
Olfactory Origin
Nasal cavity to the cortex
Olfactory Function
Sensory, afferent impulses for smell
Olfactory testing
Sniff certain smells
Olfactory disorders
Anosmia (can’t smell)
Optic numerical
II
Optic origin
Optic nerve from retina to the cortex
Optic function
Sensory nerve that carries afferent impulses for vision
Optic testing
Eye chart and visual tests
Oculomotor numerical
III
Optic disorders
Blindness, defects called anopsia
Oculomotor origin
Midbrain to eye muscle
Oculomotor function
Eye muscle control and parasympathetic control of iris
Oculomotor testing
Size and shape of pupil and its reflex
Oculomotor disorder
No eye movement and lateral strabismus is present (lazy eye). Pt demonstrates ptosis of eyelid (drooping)
Trochlear numerical
IV
Trochlear origin
Back of midbrain to superior orbital fissure
Trochlear function
Supplies the superior oblique
Trochlear testing
Size and shape of pupil and its reflex
Trochlear disorder
Double vision and can’t move the eyes down to lateral side
Trigeminal numerical
V
Trigeminal divisions
Ophthalmic, maxillary and mandibular