Flashcards in Unit 4 Deck (178)
Name the feature, which transmits the endolymphatic duct.
How many openings from the semicircular canals to the vestibule?
The membranous labyrinth composed of_____ and _____.
Communicating sacs and ducts
The vestibular labyrinth contains two small communicating sacs which are known as_____ and _____.
Name the spiral thickening of the periosteal lining of the cochlear canal, which secures the cochlear duct to the spiral canal of the cochlea.
The spiral ligament
Name the feature where the semicircular ducts open through openings.
Name the feature where the endolymphatic duct arises.
Name the feature which connects the saccule to the cochlear duct, as a uniting duct.
The primary sensory neurons of the cochlear ampulae are in _____ ganglia, which are in the internal acoustic meatus.
The cochlear duct is a spiral tube, which is firmly suspended across the cochlear canal between the _____ on the external wall of the cochlear canal and the osseous spiral lamina of the modiolus respectively.
Name the feature of the semilunar communication at the apex of the cochlea between two perilymph-filled spiral canals.
Waves of hydraulic pressure created in the perilymph of the vestibule by the vibration of the base of the stapes ascend to the apex of the cochlea through the _____.
Waves of hydraulic pressure pass through the apex of the cochlear and then descend back to the basal turn of the cochlea through _____ .
Name the receptor organ of auditory stimuli.
Spiral organ of Corti
The receptor organ of auditory stimuli is situated on the _____.
The receptor organ of auditory stimuli is overlaid by _____.
Gelatinous tectorial membrane
Untreated auricular hematoma might result in the _____ or ____.
How do you pull the helix to observe the adult’s tympanic membrane for the otoscopic examination?
Posterosuperiorly (up, out and back)
An earache and a bulging red tympanic membrane may indicate a sign of _____
Infection of the mastoid antrum and mastoid cells from a middle ear infection might cause inflammation of the mastoid process known as _____.
Paralysis of the stapedius is associated with excessive acuteness of hearing called _____ or _____.
The hyperacusis results from uninhibited movements of the _____.
Motion sickness results from discordance between ______ and _______ stimulation.
The aqueous humor drains directly into the:
A. Sclera venous sinus.
B. Limbal plexus.
C. Vorticose veins.
D. Anterior ciliary veins.
A. Sclera venous sinus
The retinal detachment usually results from the fluid accumulation between ___ and ___ layers of the retina.
The papilledema results from increased intracranial pressure through the subarachnoid space around the optic nerve. True/False
Horner syndrome results from interruption of ________________.
A cervical sympathetic trunk