sensory systems

Question 1

sense receptors

Answer 1

exteroreceptors (external stimuli): photoreceptors, olfactory, taste, skin (mechanoreceptors, thermoreceptors, nociceptors)

proprioreceptors

Question 2

touch - skin receptors

Answer 2

pascinian corpuscles
meissner’s corpuscles
thermoreceptors
nociceptors

Question 3

why does taste vary between individuals

Answer 3

there is diversity between taste receptor families, and within families, as well as between individuals

variation in amino acid sequence leads to conformational differences that determine ligand binding and activation

Question 4

sharpening the odour code

Answer 4

convergence of olfactory signals onto cortex, achieved by lateral inhibition of more weakly activated glomeruli

competition model: activated odarant circuits compete out inactive ones

Question 5

sensing light