Primary Tastes

Primary Tastes

What are primary tastes? Describe pathway of sensation of taste. (or) Primary tastes.
Answer:

Primary Tastes:

There are 4 primary taste sensations they are:

“Understanding primary tastes through FAQs: Composition, functions, and uses explained”

Taste pathway:

• It is bilateral pathway.

1. First order neurons of it are in the nuclei of three different cranial nerves.

1. Chorda tympani branch of the facial nerve runs from anterior 2/3rd of the tongue.
2. Glossopharyngeal nerve – runs from posterior 1/3rd of the tongue.
3. Vagus nerve runs from epiglottis and pharynx.
   • On each side the fibres of these nerves unite in the medulla to form tractus solitaris.

“Importance of studying primary tastes for nutrition students: Questions explained”

2. Second order neuron.

• Present in the nucleus of tractus solitaris.
• Axon of its ascend and join the medial lemiscus and terminate in posteroventral nucleus of thalamus.

3. Third order neuron.

• Present in the posteroventral nucleus of thalamus.
• Axons of this neuron project into parietal lobe of the cerebral cortex.
• It ends in the lower part of post central gyrus, which forms the center for taste sensation.

“Common challenges in mastering primary taste notes effectively: FAQs provided”