6 Vestibular System

6 Vestibular System - Lecture 5: Mini Review A person who...

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Unformatted text preview: Lecture 5: Mini Review A person who experiences severe, sharp, stabbing pain in the facial caused by stimuli that are not normally painful may have: a. Bells Palsy c. Acoustic Neuroma b. Trigeminal neuralgia d. Spina Bifida Cranial Nerve XII is (sensory, motor, mixed??) and is responsible for: __________________. Why is the macula important? Whats tunnel vision and how does it occur? The region of the retina where the axons of ganglion cells exit is called the ________. It forms the blind spot because there is a lack of _______________ in this region. Vestibular System 1. The vestibular system 2. Receptors a. Otoliths b. Semicircular Canals 3. Vestibular Pathways 4. Clinical Correlations Postural control Detection of head movement Maintenance of equilibrium Facilitation of extensor tone Control of eye movements Stabilization/direction of gaze Contributes to spatial orientation of head Autonomic functions Contributes to emotions: stability; fight or flight Physiologically, the vestibular system transduces forces associated with head acceleration and gravity into biological signals Prenatal Begins developing soon after the neural tube closes Myelination begins at approximately 12-16 weeks gestation Postnatal Fairly well-developed at birth Minor development continues until age 10 Where are we?...
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6 Vestibular System - Lecture 5: Mini Review A person who...

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