Neuroanatomy
These are the THREE components of the brainstem
What are the midbrain, pons, and medulla?
You test for this CN by asking the client to stick their tongue out
What is CN XII (hypoglossal)?
What is Cranial Nerve III Palsy?
The cranial nerve which innervates the lateral rectus muscle
What is the Abducens (CN VI)?
The components of the labyrinth which contain hair cells that respond to angular accelerations
What are the semicircular canals?
The only two cranial nerves whose nuclei are not in the brainstem
(olfactory and optic)
You test for this CN by asking the client to shrug their shoulders
What is CN XI (spinal accessory)?
The patient presents with unilateral facial weakness and loss of taste on ipsilateral side of tongue.
What is Bell's Palsy?
The cranial nerve responsible for head turning
What is CN XI (spinal accessory nerve)?
The TWO otolith organs
What are the utricle and saccule?
The only cranial nerve to exit dorsally from the brainstem
What is the trochlear nerve?
You test for this CN by asking the client to smile, puff out their cheeks, or clench their eyes tight
What is CN VII (facial nerve)?
Patient presents with absent motor function but maintains intact sensation and cognition
What is locked-in syndrome?
The cranial nerve responsible for our sense of balance/equilibrium?
What is CN VIII (vestibulocochlear)?
The middle canal of the cochlea
What is the scala media (or cochlear duct)?
Information from the ____ pathway travels through the superior colliculus while information from the ____ pathway travels through the inferior colliculus
What are the visual pathway and auditory pathway?
This test for this CN VIII involves holding a tuning fork to vertex and asking the client is the sound is louder in one ear
What is weber's test?
Patient presents with decreased pupil size, ptosis, dilated blood vessels on face and head, and decreased sweating on ipsilateral side of face
What is Horner's Syndrome?
The cranial nerve responsible for parasympathetic innervation to the heart, lungs, and digestive tract
What is CN X (Vagus)?
The component of the inner ear which senses the position of the head in the horizontal plane
What is the utricle?
The _____ portion of the reticular formation is mainly involved in alertness, consciousness, and arousal functions
What is rostral?
The tests for these TWO cranial nerves are: Palate Elevation and Gag Reflex
What are cranial nerves IX and X?
(Glossopharyngeal and vagus)
Damage to any of these THREE cranial nerves can result in dysarthria or dysphagia.
What are cranial nerves IX, X, and XII?
(Glossopharyngeal, vagus, and hypoglossal)
The cranial nerve which innervates the muscles of mastication
What is CN V (trigeminal)?
Type of frequency that will activate the hair cells near the oval window
What is high frequency?