THE SENSES www.• SIGHT• TOUCH• HEARING• SMELL• TASTE• HEALTHY
Parts of the eye• Our sense organ of sight are the eyes. We can see light, shapes, colour with our eyes.• They are very delicate. Our eyebrows, eyelashes, eyelids and tears (keep them moist)all protect our eyes.
The parts of the eye• The cornea covers the front of the eye. It is transparent.• The iris is the coloured part of the eye (brown, green, blue,…) It controls the amount of light that enters the eye.• The pupil is in the centre of the iris. It is a hole and light passes through the pupil to the inside of the eye.• The retina is at the back of the eye. It catches the light that passes through the pupil.
The organ of tough is theskin.It is located all over thebody because our whole bodyis covered with skin. We can feel different thingswith our skin: if the object isrough or smooth, cold orhot,… Some parts of the body are Braille alphabetmore sensitive than others.The most sensitive parts arethe cheeks, the palms of thehands and the soles of thefeet.
• The ears are the organ for hearing. We hear and distinguish different types of sound: high, low, soft or loud,…We also know what direction a sound comes from.• The ear is divided into 3 parts: - outer ear - middle ear - inner ear Outer ear inner middle
The parts of the ear• The pinna (earflap) receives the sounds.• The ear canal carries the sounds into the inside of the ear.• The ear drum vibrates when the sounds arrive.• The small bones pass these vibrations onto the cochlea in the inner ear.• The cochlea is the part of the ear where the sounds arrive.Then the sound sensations are carried along the auditory nerve.
The sense organ of smell isinside our nose. We candistinguish lots of differentsmells: minty, spicy, floral,…The nostrils are the holeswhere the air enters.The olfactory region is insidethe nose. This area recognisessmells.
• The tongue is the organ of taste. There are taste buds on the surface of the tongue, they give us information on different flavours.• The sense of taste lets us detect many different flavours: sweet, salty, sour and bitter.