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12 Cards in this Set
- Front
- Back
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Vascular (ant, post)
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Ant - auriculotemporal branch of superficial temporal
Post - posterior auricular a |
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Lymph (ant, post)
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ant - parotid ln, post - posterior lymph nodes
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Sensory (concha, auditory meatus, cavum conchae)
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concha - great auricular nerve and lesser occipital n post. Ant - auriculotemporal (from 5). Auditory meatus - vagus. Cavum conchae - facial/vagus
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Mid ear - vascular (superior, antioer, inferior, post)
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Supr - superior tympanic (from mma), ant - anterior tympanic (maxillary), inf - inferior tympanic (ascending pharynhgeal), post - post tympanic (from stylomastoid artery)
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Mid ear - innervation (sens, motor)
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Sensory - Glossopharynheal thru tympanic plexus (also a twig from 7)
Motor - V3 to tensor tympani, 7 to stapedius |
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Inner ear - blood
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Internal auditory from AICA. Dividis into anterior vestibular and cochlear. Cochlear goes around modiolus as spiral modiolar artery
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Internal auditory canal (contents sup inf)
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sup - superior vestibular nerve + facial
inf - inferior vestibular nerve + cochlear |
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Tympanic cavity - medial wall (5)
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Promontory, oval window, round window, lat semicircular canal, fallopian canal
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Tympanic cavity - ant wall (4)
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Canal of huguier - chorda tympani n.
canal for tensor tympani m. Tympanic orifice for eustachian tube Petrotympanic fissure for tympanic artery |
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Aditus ad antrum (2)
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Prominence of lat semicircular, short process of incus attaches to its floor
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Osseous labyrinth parts
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Vestibule, cochlea, semicircular canals
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Central connections of auditory input
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Dorsal/ventral cochlear nucles --> most fibers decussate --> superior olive --> inferior colliculus --> MGB --> auditory cortex at superior temporal gyrus
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