Sensory Systems – Hearing and Balance

Sound waves with high frequency are heard as high pitch

Sound waves with high amplitude are heard as high volume

External Ear – Elastic cartilage covered in skin. Catches and funnels sound waves

Sound waves cause the ear drum to vibrate which is passed into tiny bones. Sound waves are amplified and passed through a complex structure becoming electric signals which are delivered to the brain.

Semi circular canals – A series of circular fluid filled tubes in the inner ear. Detects rotational movement.

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