olfactory tracts การใช้

• Fibers from the lateral olfactory tract begin branching into the olfactory tubercle around E17.
• The implication is that disconnecting the olfactory tract does more than simply remove the cat's sense of smell.
• They needed to thread the whisk up the nostril and through the olfactory tract to get it into the skull.
• The olfactory bulb also includes a portion of the anterior olfactory nucleus, the cells of which contribute fibers to the olfactory tract.
• After the processing in the bulb the signal is transmitted caudally via the axons of mitral and tufted cells in the lateral olfactory tract.
• Related to this, the CSF of patients with disease activity show high levels of " Lateral Olfactory Tract Usher Substance " ( LOTUS)
• They are believed to have an impaired sense of smell due to the lack of the olfactory bulb, but they do have an olfactory tract.
• The lateral portion of the olfactory tubercle ( which adjoins the olfactory tract ) receives the densest fiber input and the medial portion receives light fiber projections.
• Signals from odor sensation are sent from the olfactory bulb through mitral and tufts cell axons via the lateral olfactory tract and synapse at the primary olfactory cortex.
• In some children without  classic holoprosencephaly, microforms of holoprosencephaly may be noted on MRI, including missing olfactory tracts and bulbs and absent or hypoplastic corpus callosum.
• Here the fascicles enter the olfactory bulb and synapse there; from the bulbs ( one on each side ) the olfactory information is transmitted into the brain via the olfactory tract.
• It has been postulated that the neurons forming the nucleus of the lateral olfactory tract derive from the dorsal pallium and migrate tangentially into its final position caudal to the olfactory tuberculum.
• :The olfactory receptor neurons connect to the olfactory nerve which connects to the olfactory bulb which connects to other parts of the brain via the olfactory tract-see olfactory system.
• One definition includes the olfactory bulb, olfactory tract, anterior olfactory nucleus, anterior perforated substance, medial olfactory stria, lateral olfactory stria, parts of the amygdala and prepyriform area.
• As such, the rhinencephalon includes the olfactory bulb, the olfactory tract, the olfactory tubercle and striae, the anterior olfactory nucleus and parts of the amygdala and the piriform cortex.
• It serves in this way to connect the two temporal lobes, but it also contains decussating fibers from the olfactory tracts, and is a part of the neospinothalamic tract for pain.
• The brain was globular and similar in shape to that of birds and troodontid theropods, the cerebrum was expanded in a way similar to most theropods, and the olfactory tracts were relatively large.
• These stimulants are transduced into electrical activity in the olfactory neurons, which then transmit these impulses to the olfactory bulb and from there to the rest of the central nervous system via the olfactory tract.
• From the olfactory bulb, mitral / tufted cells send axons via the lateral olfactory tract ( the cranial nerve I ) to the olfactory cortex, which includes the piriform cortex, entorhinal cortex, and parts of the amygdala.
• The mitral cells leave the olfactory bulb in the lateral olfactory tract, which synapses on five major regions of the cerebrum : the anterior olfactory nucleus, the olfactory tubercle, the amygdala, the piriform cortex, and the entorhinal cortex.