Question

What are the four primary tastes?

Answer 1

Hint: The tongue is very sensitive towards taste and consists of various types of tastes depending upon the region where the particular taste buds are present. All the regions taste differently thus we are able to taste different cuisines.

Complete answer:
Taste buds also are present on the tongue, the epiglottis, the palatoglossal arches, and therefore the posterior wall of the oropharynx. They are present in the various regions of papilla that include circumvallate papilla, fungiform papillae, and foliate papilla.
-Gustatory receptors detect four primary tastes:
a) Sweet- tip
b) Sour- middle
c) Salty- anterolateral
d) Bitter- base
-There are supporting cells in taste buds which are elongated columnar cells with dark cytoplasm but lightly- stained nuclei. The outer wall of the palate is formed by them. To reach the taste pores from their reach they require microvilli that are long.
-At the bottom of the palate the basal cells are found which function as the stem cells and help in renewing the taste cells as well as support them.
-The presence of various papilla on the tongue the oral dorsal part contains mucus and is pink and velvety in appearance. It is attached to various muscles of the papillae and is thicker than the ventral surface.
-The tongue is made up of various muscles that include the extrinsic and the intrinsic muscles.

Note:
The presence of an upscale network of lymphatic and loose connective tissue within the substance of the tongue is liable for enormous swelling of the tongue in glossitis. The various functions of the tongue are: Taste, Mastication, Speech, Jaw development, Deglutition, and Thermal regulation.