Brainstem I: Surface Anatomy and Cranial Nerves - Corneal Reflex & Jaw Jerk Reflex

6 important questions on Brainstem I: Surface Anatomy and Cranial Nerves - Corneal Reflex & Jaw Jerk Reflex

What is the corneal reflex?

when you stroke the cornea with a cotton stick, the eye closes. this is mediated by mono & polysynaptic pathways, response must be the result of touching not movement. optic nerve 5

What is the blink to threat reflex?

watch if a patient blinks when you move your hand in front of his/her eyes rapidly. Afferent limb optic nerve 2

What is the Jaw Jerk reflex

tapping on someones chin --> mouth opens. If jaw jerks forward --> hyperflexia (UML)
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What does tonotopically organization means?

Tones close to each other in terms of frequency are represented in topologically neighbouring regions in the brain. (??)

What is the superior olivary nuclear complex for?

localizing sounds horizontally in space

When a patients suffers from auditory seizures caused by abnormal electrical discharges in the auditory cortex, what are the symptoms/

they perceive tones like an flying airplane in the opposite ear

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