The senses
17 important questions on The senses
What is the difference between cones and rods?
If there is no light, are photoreceptors depolarized and secreting neurotransmitter or hyperpolarized and not secreting neurotransmitter?
What happens to the photoreceptors if there is light?
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How can photons cause a drop in cGMP?
Where do you find rods and where do you find cones?
Cones: mainly in fovea.
Rods and cones relay their information to bipolar cells. How many rods are connected to one bipolar cells? And how about cones?
Cones: 1 cone to 1 bipolar cell (high precision, low sensitivity)
What is the difference between ON and OFF bipolar cells?
The OFF cells are depolarized when there is no light and action potentials are generated to the OFF ganglion cell. When there is light, there is less glutamate, the OFF cell hyperpolarizes and there are less action potentials.
What is the function of horizontal cells?
What part of the ear translates vibration into mechanical movement?
What causes an action potential in the ear?
How is it possible that K causes depolarization in the ear, because usually K causes hyperpolarization?
Where do the left and right cochlea project to?
What is special about smell?
Why does the olfactory epithelium need continuous regeneration?
How do you taste salt and acid?
How do you taste sweet, umani, and bitter?
Which neurotransmitter is associated with taste?
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