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25 Cards in this Set
- Front
- Back
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The outer ear is referred to |
The oracle/pinna |
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What is the pinna/oracle |
It is the outer part of the ear that acts like a funnel taking sound from a large area and channelling it into a small canal |
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What is the auditory canal |
Carries soundwaves to the eardrum |
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What is the tympanic membrane |
It is a thin layer of tissue that receive sound vibrations also known as the eardrum |
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What are the ossicles |
They are tiny bones that amplify and carry sound in the middle ear |
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What is the oval window |
It is an oval shaped hole in the vestibule of the inner ear covered by a thin layer of tissue |
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What is the eustachian tube |
It is an air filled tube of the middle ear that equalizes pressure between external and internal ear |
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What is the vestibule |
It is a chamber found at the base of the semicircular Canal's that provides information about static equilibrium |
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What is the semicircular Canal's |
They are the fluid filled structures within the inner ear that provide information about dynamic equilibrium |
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What is the cochlea |
It is the coil structure of the inner ear that response to various sound waves and converts them into nerve impulses |
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What is the organ of Corti |
It is the primary sound receptor in the cochlea |
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What is the basilar membrane |
Anchors the receptor hair cells in the organ of the Corti |
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What are otoliths |
Tiny stones of calcium carbonate embedded in Gelatinous coating within the saccule and utricle |
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What are three ossicles |
The malleus, the Incus, and the stapes |
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What are three ossicles |
The malleus, the Incus, and the stapes |
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What is the protective measure of the ossicles from loud sounds |
They pull away from the eardrum |
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The auditory tube (eustachian) Links what |
The middle ear to the nasopharynx |
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What is otitis media |
A middle ear infection which is usually because of a throat infection. It is especially common in children because the auditory tube runs more horizontally |
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How do we hear |
The sound goes into the paneer then through the eardrum and the ossicles vibrate. The stapes purses in words on the oval window. The oval window transfers the vibrations to the inner ear fluid causing pressure waves. The organ of Corti in the cochlea makes The hair cells bend against tectorial membrane. This stimulates the neurons which sends the impulse to the Temporel lobe's |
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Deafness can be caused by what problem |
Conduction problem meaning that something is blocking the process of hearing |
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What is tinnitus |
A ringing in the ears from information or medication |
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Static equilibrium is gravitational. The Otoliths tell the brain(cerebellum) what position the ____ is in |
Head |
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The three planes of dynamic equilibrium are |
Horizontal diagonal and vertical. The fluid in semicircular Canal's move to the body position and tell the brain (cerebellum) what position the body is currently in using proprioceptor's |
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Motion sickness is |
Sensory input mismatch |
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Vertigo is |
A balance disorder causing false sensations of movement can be caused by an inner ear infection |
