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24 Cards in this Set
- Front
- Back
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Name the five ossicular ligaments.
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Superior Malleolar
Lateral Malleolar Anterior Malleolar Posterior ligament of the incus Annular ligament of the stapes |
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The superior malleolar runs from the ______ of the ______ to the ______ _______.
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head, malleus, tegmen tympani
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The lateral malleolar runs from the _____ of the ______ to the boney wall near the _____ __ ______.
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neck, malleus, notch of rivinius
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The anterior malleolar runs from the _______ _______ to the ______ ______.
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anterior process, carotid wall
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The annular ligament runs around the ______ __ ___ ______.
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footplate of the stapes
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Name the two tympanic muscles.
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Tensor Tympani
Stapedial |
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The tympanic muscles are the _________ ________ muscles of the body.
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smallest striated
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The tympanic muscles are ______ in nature (feather like) and are encased in ______. Only the _______ enter the middle ear.
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penate, bone, tendon
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The tensor tympani was described by ____________ in _____. It is ___ mm in length and has a cross section area of ______ mm squared.
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Eustachius, 1564, 25, 5.85
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What is the origin of the tensor tympani?
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The cartilaginous portion of the auditory tube just above the boney portion of the auditory tube.
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What is the insertion of the tensor tympani muscle?
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the handle of the malleus
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What is the nerve supply of the tensor tympani muscle?
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trigeminal V
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The tensor tympani muscle lies _______ and _______ to the auditory tube.
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superior, parallel
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The contraction of the tensor tympani draws the _______ ________ and _______. It applies a force at a ______ ______ to the rotation of the ________. It increases the _______ of the TM.
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malleus, mediall, anteriorly, right angle, ossicles, tension
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The stapedial muscle is the _______ striated muscle in the body with a length of ___ mm and a cross section area of ____ mm squared.
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smallest, 6, 5.0
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Where does the stapedius muscle originate?
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in a boney canal parallel to the facial nerve canal in the posterior wall of the middle ear
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Where does the stapedius muscle insert?
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the neck of the stapes
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What is the nerve supply of the stapedius muscle?
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facial nerve VII
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The stapedius muscle is almost _______ and the tendon is almost _________.
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vertical, horizontal
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Contraction of the stapedius muscle draws the ______ of the stapes ________. It exerts a force at a _______ _______ with the vibration of the ________.
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head, posteriorly, right angle, ossicles
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The stapes and tensor tympani action exerts a force in _________ directions, _________ each other, and _________ to the rotational axis of the __________ ______.
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opposite, opposing, perpendicular, ossicular chain
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The tympanic muscles action is elicited by ______ _______, _______ in nature, and elicited by either _________ or __________ stimulation.
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sound energy, reflexive, ipsilateral, contralateral
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The motor response for the acoustic reflex arc descends through the _______ ______ and back into the ________ ____ muscles.
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facial nerve, middle ear
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What is the main player in obtaining an acoustic reflex?
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stapedial muscle
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