2. The eye is the organ of sight, with it we can get
pictures of the world around us.
Formed of: the
eyeball, cornea, pupil, iris, lens, retina and
optic nerve.
The light reaches the eyeball, through the
cornea, enters the pupil (the opening of
the iris), focuses on the retina and travels
through the optic nerve to the brain.

3. The organ of hearing is the ear. It is divided into
three parts:
·External ear: formed by the ear and the ear
canal, pick up sounds.
·Middle ear: consists of the eardrum and
ossicles transfoman sounds into vibrations.
·Inner ear: consists of the cochlea and the
auditory nerve, transform the vibrations
into nerve impulses and sent to the brain.

4. The organ of touch is the skin. consists of three
layers:
·Epidermis: outer layer and protective function.
·Dermis: below the epidermis, cold
receptors, heat and pressure.
·Hypodermis: below the dermis, contains grasay
protects from cold and shock.

5. The organ of smell is the nose.
Receptors are find in the pituitary, on the
interoperability of the nostrils.

6. The organ of taste is the tongue. The
taste buds are located in different parts
of the tongue with different flavors:
salty, bitter, sour and sweet.

7. Realizado por:
Pablo R. Nº6
6ºA