What are the five senses?
The five human senses are the sense of seeing, hearing, touching, smelling and tasting. These five human senses play a unique role by receiving information signals from the environment through the sensory organs. Then relay it to the human brain for interpretation. The brain, receiving and interpreting the information, tells the body how to respond. These senses are existing in particularly adapted body awareness organs that include the eyes, ears, skin, nose, and tongue.
The Five Senses: Functions
Sense of Sight
The sense of sight manifests itself through the eyes, which recognize color or light. The eyes have the ability to perceive images and to capture visible elements. Light penetrates into the eyes and travels through the special parts such as the pupil, lens and retina to the special receptors in the brain through the optic nerve. Light moves at high speed and the eyes receive it quickly and transmit it to the brain. The brain then interprets the images and sends them back to the eyes so you can see. The sense of sight is important for people because without sense of sight which means ability to see, the world would be dark.
Sense of Hearing
The sense of hearing manifests itself through the ears, which perceive noises. Listening is the perception of sound. The sound is perceived by the ear through vibrations that penetrate the ear canal and vibrate the eardrum. The vibrations then extend through special bones called a hammer, anvil and stirrup to the inner ear, which transmit the information to the brain. The brain then advises on what has been heard, such as honking, screaming, noise, and so on.
Sense of Touch
The sense of touch manifests through the skin; the skin detects heat, cold, pressure and pain. The skin has many receptors that measure the degree of pressure exerted on it, as well as the time-span of application. The skin has the ability to feel its own temperature and, through its multiple receptors transmits the impulses through the peripheral nervous system to the central nervous system and the brain. The brain then interprets and you can tell if it is hot or cold and if there is pain or friction.
Sense of Smell
The sense of smell manifests itself through the nose. The nose helps to detect odors and chemicals in the air. The olfactory receptors in the nose look for chemicals in the air or out of the food. These fragrances migrate directly into the olfactory cortex of the brain. The brain interpretates and return the information back thus making it possible to recognize all these odors and recognize a specific smell. You can then know if it is a good or bad smell and react accordingly.
Sense of Taste
The sense of taste manifests itself through the tongue. The tongue recognizes taste: salty, sweet, sour and bitter. Taste is the ability to recognize various chemicals in foods, minerals and even toxic substances. This happens through the taste buds, which are the sense organs of the tongue. With these flavors, the body can distinguish nutritious from harmful substances. The tongue distinguishes tasty and disgusting substances.