August 28th 2014 01:26
The body has 5 main senses:
sensors in the middle ear detect the head's position and movements while those in muscles and joints bring information about the poition of the body and limbs.
Which helps us to keep our balance
Other micro sensors detect internal body conditons such as temperature and blood pressure.
Smells are scent molecules taken into the nose when we breathe
Something like a lock and key, when a particle fits properly ,only then is a nerve signal sent to the brain.
Taste relies on sensors in the tongue, "the taste buds are on the top of the tongue" as the saying goes.
The tip of the tongue is sensitive to sweet tastes, the front sides to salty, the rear sides to sour, the middle rear to bitter
The sense of touch relies on sensors in the skin, including light touch and heavy pressure, heat and cold, movements and vibrations.
In the fingertips there are 10,000 microsensors in every square millimetre of the skin.
Sight is more difficult and we'll cover that another day.
And some on hearing, too as opposed to balance explained in this post.