The olfactory bulb is the main component of the limbic system and contains areas for olfaction. There are also specialized neurons in the amygdala called granule cells, which terminate on 2nd order neurons in the nucleus solitarius. These specialized neurons are replaced every five to eight weeks. Each cell has a unique set of receptors that respond to one or more odorants.
The olfactory nerves are located in the olfactory bulb, which is the main relay station in the olfactory pathway. The olfactory bulb is the largest part of the olfactory system and lies in the cranial cavity on the medial aspect of the frontal lobe. The olfactory bulbs contain bundles of nerve fibers known as glomeruli. The axons of incoming receptor cells make connections with mitral (relay neuron) cells in the olfactory bulb.
The olfactory receptor cell is bipolar and has two projections from the cell body. The dendrite extends to the surface of the olfactory epithelium and expands to a knob-like surface. The cilia on the surface of the dendrite are a collection of odor-detecting receptors, which are responsible for the detection of smell and advanced aspects of taste and smell. The cilia of the olfactory receptor cells is comprised of basal cells, which form new olfactory cells. Sustacular olfactory cells provide structural support and are similar to glial-like cells in the CNS.
The olfactory receptors are made up of specialized neurons that are surrounded by a layer of glomeruli. The glomeruli of the olfactory bulb contain different types of olfactory neurons. In addition, the olfactory bulb contains a layer of olfactory cells and a laminar distribution.
The olfactory receptors are located in the olfactory stria. The striae are the cells that receive the signal from the olfactory gland. They pass through the olfactory groove. The olfactory glands in the brain are found in the olfactory cortex.
The olfactory glands are composed of columnar epithelium and millions of olfactory neurons. The olfactory striae contain a variety of cells, including the olfactory receptors. They are the cells that respond to odors and are located in the olfactory tract. Several different types of olfactory cells are located in the olfactory bulb.
The olfactory striae are the cells that receive the olfactory nerve. The olfactory striae contain the olfactory receptors and mitral relay neurons. They extend into the olfactory bulb. All three of these anatomical features of the olfatory system are essential to the perception of smell.
In addition to the olfactory striae, each olfactory receptor cell has many distinct types of olfactory cells that respond to different odorants. These cells are located on the underside of the frontal lobe. The olfactory cortex is responsible for the recognition of individual odors. The olfactory bulb has gustatory and autonomic areas.
The olfactory receptors are the receptors that are responsible for recognizing smell. They are located in the olfactory bulb and contain synapses. Those receptors are located in the olfactory cortex. The olfactory olfacty bulb is situated at the top of the skull.
In terrestrial vertebrates, the olfactory receptors are located on olfactory cells that are clustered at the back of the nasal cavity. These cells form the olfactory epithelium. They are covered by mucus and have single external processes. They serve as sensors for detecting odour molecules.
The olfactory epithelium is the region of the brain where the odorant receptors are found. It is activated by odorants that enter the oral cavity through the nasopharynx. When this happens, the odorant is able to bind with a receptor on the olfactory epithelium and trigger the sensory neuron associated with it.