Sound wave causes the ear drum to vibrate,,,, then the middle bones transmit the sound and they act as levers which amlify the sound,,,, then the oval window vibrates and the fluid moves
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cochlea
Fluid filled tube, hair cells stretch between the membranes, vibrates and generates an action potential which travels along the audatory nerve to the brain
2 of 6
Cochlea implant
Picked up by microphone, pricessed into an electrical impulse, signals are radiowave, travel down wire electrodes, when recieved a electric current stimulates the audatory nerve
3 of 6
semi cicular canels
Fluid filled, ampula contains hair cells, when head moves fluid flows past cupia, cillica hair moves
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sympathetic
more active in stressful sitations, increases heart rate and blood pressure, contricts blood vessels, increases vision
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Parasympathetic
active in conservation of energy , constricts the pupil and slows heart rate
6 of 6
Other cards in this set
Card 2
Front
cochlea
Back
Fluid filled tube, hair cells stretch between the membranes, vibrates and generates an action potential which travels along the audatory nerve to the brain
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