BPK 205 Chapter Notes - Chapter 10: Basilar Membrane, Sensory Neuron, Membrane Potential
15 Dec 2018
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= graded potential: the adequate stimulus is like a favourite stimulus". It is the form of energy to which the sensory receptor is most responsive. The receptor may respond to other stimuli less strongly and will need more of these other types of stimuli to activate the receptor (if it isn"t the favourite stimulus): five basic tastes. Sweet nutritious foods type 2 = receptor cells -> express protein receptors for one. Salty na+ body osmolarity type 1 = support cells; structural. Sour h+ ph type 3 = presynaptic cells -> release nt (serotonin) onto 1 neuron in response type of taste or flavour sourness or acidity: soundwaves measured in hertz (hz). Loudness = fxn/ of amplitude, measured in db. Hz: basilar membrane (in cochlea) codes sound for pitch. average human ear is 20-20000 hz most acute hearing ranges from 1000-3000 information to the medulla from which collaterals then take the information to the.
