Connection lost. Please refresh the page.
Get help How to study Login Register

Taste pathway

Learning objectives

This study unit will teach you how to:

  1. Identify the structures that receive taste sensations.
  2. Name nerves that transmit the taste sensations to the brain.
  3. Describe the parts of the brain involved in processing and interpreting taste sensations.

Watch video

The taste pathway is an ascending sensory pathway that carries gustatory information. It is provided by the special visceral afferent (SVA) fibers of the facial (CN VII), glossopharyngeal (IX) and vagus nerve (CN X). Special visceral afferent fibers by definition convey information about special senses related to the gastrointestinal tract (i.e. taste, olfaction).

The main organ of gustation (taste) is the tongue, with its anterior two-thirds being innervated by the facial nerve, and its posterior one-third by the glossopharyngeal nerve. Additional structures capable of gustation are the inferior surface of the soft palate, supplied by the facial nerve, and the epiglottis, supplied by the vagus nerve.

Neurons involved in gustation synapse in the nucleus of the solitary tract in the medulla oblongata. From here, the majority of the impulses are transmitted to the thalamus which, in turn, projects the taste information to the primary gustatory cortex found in the insula. In addition, some fibers from the nucleus tractus solitary are also projected to the hypothalamus and amygdala, which are involved in certain unconscious mechanisms related to taste.

Learn more about the components, course and function of the taste pathway by watching the following video!

Take a quiz

Now that you've watched our video about the taste pathway, you might want to test what you just learned! We've created an interesting and smart quiz with all the structures that are involved in the taste pathway. Try it and see how much you know!

Browse atlas

Take a closer look at the components of the taste pathway in the gallery below.


Key points about the taste pathway
Facial nerve Anterior two-thirds of tongue → Chorda tympani
Soft palate → Greater petrosal nerve

→ Geniculate ganglion → Rostral solitary nucleus
Glossopharyngeal nerve Posterior third of tongue → Lingual nerve → Inferior ganglion of glossopharyngeal nerve → Rostral solitary nucleus
Vagus nerve Epiglottis → Superior laryngeal nerve → Inferior ganglion of vagus nerve → Rostral solitary nucleus
Solitary nucleus Taste sensation: Rostral part of nucleus of solitary tract → Ventral posteromedial nucleus of thalamus → Insula
Appetite/satiety response
: Rostral part of nucleus of solitary tract → Pontine taste area → Lateral hypothalamic area
Emotional/memory formation
: Rostral solitary nucleus → Pontine taste area → Amygdaloid body

Well done!

Related articles

Continue your learning

Register now and grab your free ultimate anatomy study guide!