The area that brings the impulses to the appropriate part of the brain.
What is the Optic Nerve?
100
Receptors that respond to chemicals released by damaged cells.
What are pain receptors?
100
The middle of the Iris that is a small opening.
What is a pupil?
200
Tiny muscles in this adjust the size of the pupil to regulate the amount of light that enters in the eye.
What is the Iris?
200
Receptors that detect variations in temperature.
What are Thermoreceptors?
200
Area just behind the Iris.
Where are lenses located?
300
Area just behind the Iris that change shape to help you adjust your eyes and focus to near and distant objects.
What are Lens?
300
Receptors that are sensitive to touch, pressure, stretching of muscles, and motion.
What are Mechanoreceptors?
300
Where Photoreceptors are arranged.
What is the Retina?
400
The two types of photoreceptors that allow us to see.
What are Rods and Cones?
400
Receptors that are sensitive to chemicals in the external environment.
What are chemoreceptors?
400
A type of Photoreceptor that is very sensitive to light and cannot distinguish light.
What are Rods function?
500
Light enters through this through a transparent layer of cells and helps focus light, which then passes through a chamber filled with a fluid called aqueous humor.
What is the Cornea?
500
Reactors that are sensitive to light.
What are Photoreceptors?
500
Neutrons that react to a specific stimulus such as light or sound by sending impulses ti other neutrons.