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Cards In This Set
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High frequency sounds deflect the basilar membrane _________oval window where it is ________.
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Closer to the : narrow and stiff
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The amplitude of a sound is determined by ________.
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The degree of deflection of the steriocilia on the stimulated hair cells
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Whether a hair cell in the semicircular canal of the vestibular apparatus is depolarized or hyperpolarized is dependent upon the _______.
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Direction the stereocillia on the hair cells are bent
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_______ taste receptor cells have extracellular receptors that bind to monosaccharides.
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Sweet
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In order to be smelled a substance must be:
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Volatile so that it enters the nasal epithelium.
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The ________ is an intracellular storage site for calcium in muscle fibers.
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Sarcoplasmic reticulum
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Which of the following parts of muscle contraction and relaxation require ATP?
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All of the above require ATP
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Calcium regulates muscle contraction:
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By binding to troponin which moves tropomyosin off the binding sites for myosin on actin allowing cross bridges to form.
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Excitation contraction coupling occurs because:
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T-tubules propagate action potentials to the interior of the muscle fibers causing the release of calcium from the sarcoplasmic reticulum.
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The slowest but most efficient way muscle fibers have for regenerating ATP is through _______.
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Aerobic respiration
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Your postural muscles that have to sustain contraction for long periods of time primarily use ______ from the _______ to make ATP.
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Fatty acids : plasma
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Which of the following would increase the strength of a muscle's contraction?
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Recruit larger muscle fibers in the muscle.
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If you are looking at a muscle fiber under the microscope and it has a small diameter, is dark red in appearance and has many mitochondria you are looking at what type of muscle fiber?
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Slow twitch oxidative
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Which of the following is a possible reason for muscle fatigue:
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All of the above.
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Which of the following plasma proteins are not produced by the liver?
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Gamma globulins/antibodies
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