Ch7 - Oflaction

Question 1

Stimulus

Answer 1

volatile substances w 15-300 molecular weight, almost all lipid soluble & organic origin

Question 2

Oflactory processing

Answer 2

each receptor sends 1 axon into olfactory bulb where it forms synapses with dendrites of mitral cells - axons of mitral cells travel to brain through olfactory tracts

Question 3

Recognition of odours

Answer 3

up to 10 000 diff odorants for humans - 339 diff olfactory receptors (min) - particular odour = particular pattern of activity in glomeruli - patterns of activity in posterior piriform cortex - odorant molecules bind to multiple receptors