Page 1 - Microsoft Word - Tongue and Skin

CHAPTER-9 NERVOUS SYSTEM
Topic: Tongue and Skin

Tongue – Taste or Gustaoception

 The tongue helps in perceiving various tastes and flavours.
 The taste buds are present between the papillae on the tongue. These help in sensing
different tastes.
 The senses of smell and taste tend to work together. If one could not smell something, they
could not taste it either.
 The sense of taste is also known as gustaoception.
 Taste buds on the tongue contain chemoreceptors and four different types of taste buds and
each one can detect different types of tastes like sweetness, sourness, bitterness, and
saltiness.

Taking Care of Tongue
a) While brushing your teeth, clean your tongue gently in a proper way.

b) Drink plenty of water. Sometimes dehydration can cause a change in the colour of the
tongue.

https://youtu.be/HTRq_OM18Pw

Skin – Touch or Tactioception

 Skin is the largest organ of our body. It is related to the sense of touch.
 The sense of touch is also referred to as tactioception.
 The skin contains general receptors which can detect touch, pain, pressure, and
temperature.
 They are present throughout the skin. Skin receptors generate an impulse, and when
activated, is carried to the spinal cord and then to the brain.