Olfactory and Gustatory System

Which of the following is a glutamatergic neuron?

• Tufted

• Granule

• Periglomerular

• Olfactory bipolar neuron

• Mitral

Which of the following is the true cranial nerve I?

• Olfactory tract

• Olfactory bulb

• Axons of mitral/tufted cells

• Olfactory stria

• Axons of olfactory bipolar neurons

Which of the following structures is where the axon of the AON crosses over to reach the olfactory tract of the other side?

• Lateral olfactory stria

• Anterior commissure

• Olfactory bulb

• Septal nuclei

• Posterior commissure

Which of the following is not part of the olfactory tubercle?

• Olfactory bulb

• Olfactory trigone

• Olfactory tract

• Lateral olfactory stria

• Medial olfactory stria

Which of the following olfactory pathways is not directly involved with the sense of smell?

• Neocortical

• Archicortical

• Paleocortical

• Limen insulae to dorsomedial nucleus of thalamus

• Piriform cortex to entorrhinal

Which of the following nuclei receives gustatory signals

• Principle nucleus of V

• Nucleus ambiguus

• Facial

• Hypoglossal

• Solitary

Where is the primary gustatory cortex?

• Opercular part of postcentral gyrus

• Opercular part of precentral gyrus

• Angular gyrus

• Tranverse gyri of temporal lobe

• Orbitofrontal cortex

Where are the taste buds for saltiness?

• Front tip of tongue

• Back portion of tongue

• Middle portion of tongue

• Every area of tongue

• Sides of the tongue

The taste sensory signals from the posterior third of tongue is conveyed through which nerve?

• CN X

• CN V

• CN IX

• CN VIII

• CN XII

Sensation of sharpness or roughness on the anterior portion of the tongue is conveyed by which nerve?

• CN VII

• CN V

• CN XII

• CN IX

• CN X