K.C.S.E Biology Q & A - MODEL 2001PP1QN17b
Describe how semicircular canals perform their functions
There are three semi – circular canals; arranged in planes at right angle to each other; at the end of each canal is swelling called ampulla’s which contains receptors.
The movement of the cause movement of the fluid in at least one canal, the fluid movement deflects / displaces the coperta and thus stimulating the receptors / sensory hairs, the impulse / nerve sensory impulse is transmitted / conducted to the brain; by auditory nerve, about the movement of the body / head.
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