2 1.How many odors can the olfactory system recognize? The smell, or olfactory system can distinguish thousands of odors.
3 2.Where is the olfactory lining located? In the nose
4 3.How does the olfactory bulb interpret different odors? In the olfactory bulb, information from the receptors are organized into patterns that the brain may interpret as different odors.
5 4.Which system senses and processes odors? The olfactory system, which senses and processes odors (in the brain/nervous system), is one of the oldest and most vital parts of the brain.FYI:For most animals, it is the primary mode of communication and influences many important functions, including reproduction and taste. Scientists are just beginning to learn how the olfactory system works.
6 5.We know the nose is used for sense of smell. How does it work? The nose contains specialized sensory nerve cells, or neurons, with hairlike fibers called clilia on one end.
7 6.Where does olfactory information travel? Each neuron sends a nerve fiber called an axon to the olfactory bulb, a brain structure just above the nose.
8 7.How do we detect flavor?Olfactory information travels not only to the limbic system -- primitive brain structures that govern emotions, behavior, and memory storage -- but also to the brain's cortex, or outer layer, where conscious thought occurs. In addition, it combines with taste information in the brain to create the sensation of flavor.
9 8.Describe the path odor molecules take from inhalation to behavior. Odor molecules entering the nose are thought to be recognized by receptors found in cilia of olfactory neurons.Neurons with specific receptors are arranged randomly within zones in the olfactory lining of the nasal cavity.Signals from neurons with the same receptors converge on structures called glomeruli in the olfactory bulb.The pattern of activity in these glomeruli creates a pattern or code that the brain may interpret as different odors.The information is carried by nerve fibers to many brain regions, where it affects thoughts, emotions, and behavior.