What is the function of the neurons?
To transmit messages called nerve impulses.
Name the 3 main parts of the neuron.
Cell body, dendrites, axon
Explain the function of the iris.
To control the amount of light that enters the eye.
Explain the relation between the light and the pupil.
The light enters the eye through the pupil.
What is the function of the lens?
Changes the shape to focus the image.
The retina detects light and it also has __________________.
receptor cells
What sends the signals from the eye to the brain?
The optic nerve
Name the parts of the outer ear.
The pinna and the ear canal.
Name the parts of the middle ear.
Eardrum and ossicles (malleus, incus and stapes)
Name the parts of the inner ear.
Cochlea and semi-circular canals.
In taste, what sends the information to the brain?
The gustatory nerve.
What sense organ is the organ of touch?
The skin
