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We have five senses namely sight, hearing, taste, touch and smell.
We see by our eyes, hear by ears, taste by tongue, touch by skin and smell by nose.
All the 5 senses are connected to central nervous system.
Our eyes allow us to see the world. Without our eyes it would be impossible to distinguish between colours. Externally they consists of pupil, eyelid, iris etc.
Eyes internally consists of retina, lens, cornea, optic nerve etc.
The function of Ear is of hearing. Ear externally consists of helix, scapha, lobe etc.
Internally ear has different membranes, small bones and a tube which is known as auditory tube.
The basic function of tongue is of taste. It refers to the ability to detect the flavor of substances such as food, certain minerals, and poisons, etc.
The basic function of nose is of smell. Without nose it would be very difficult for us to differentiate between smell or odour of a particular thing.
Nose externally consists of apex, wing, septum etc.
Touch is one of the five senses. is a perception resulting from activation of neural receptors, generally in the skin including hair follicles.