Olfactory Epithelium
In the nose, connects directly to the brain, not through the thalamus (only sense to not go through thalamus)
Chemoreceptors
Smell, Pheromones, and taste (chemical receptors)
Sour
Acids
Saltiness
Alkali Metals
two point threshold
minimum distance between two points to be able to tell they are two points and not one
Physiological zero
temperature near body temp, anything above feels hot and anything above feels cold
Gate theory of Pain
rubbing head after bumping it. Turning on and off receptors
Endorphins
Turns off pain
proprioception
where you are in space