olfaction Flashcards
olfaction
sensory system detects smell
odors
sensation of a smell
olfactory epithelum
sheet of olfactory receptors & other cells that line dorsal portion of nasal cavities
olfactory bulb
through small openings in skull, provide receptors for smell, terminates in upper nasal passages
glomerulus
complex arbor of dendrites from group of olfactory cells, receive input exclusively from olfactory neurons
Vomeronasal system
animals can detect secondary chemicals called pheromones
pheromones
chemical signal released outside the body of an animal and affects other members of same species
cilia
detect odorants through metabotropic receptors
trace amine-associated receptors
responds to sex-specific pheromones
Vomeronasal Organ (VNO)
collection of specialized receptor cells, detect pheromones, send electrical signals to accessory olfactory bulb in brain