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Which of the following is true about olfactory transmission?
EXPLANATION
Sensory Physiology
- Olfactory Processing Pathways: In the olfactory system, axons of olfactory bulb mitral and tufted cells project directly via the lateral olfactory tract to the primary olfactory cortex (pyriform cortex) and amygdala without an obligatory thalamic relay.
- Conscious Perception: Higher-order conscious discrimination and identification of distinct odors depends on projections to the Orbitofrontal Cortex (via direct pathways and via the mediodorsal nucleus of the thalamus) [Option 3].
Correct option: (3) Conscious discrimination of odors is dependent on the pathway to the orbitofrontal cortex.
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