Our Five Senses

Topics: Sense, Eye, Retina Pages: 3 (1156 words) Published: December 5, 2010
Unit 2: Teamwork Assignment, Team A
Romy Brannen,
Amy Eoff-Stanley,
Kourtney Trehern,
Amanda Basher,
Nathan Palmer,
Debra Lee
General Psychology - 2027
May 15, 2010

Our Five Senses, Vision, Smell, Hearing, Taste, and Touch

The following paper is an explanation of our five senses. How they work and why do we have them. Would a person be able to function if one or more senses were lost? All these questions are answered in following document. Our entire sensory system consists of numerous amounts of different sensors. The main senses are vision, smell, hearing, taste, and touch. Those senses are important. They play a role in our everyday life. Losing one of these senses could be crucial. Let us start with vision. There are many different parts to the eye. The cornea is the window, which has a curve to it. This feature makes it possible to bend light and helps you see more clearly. The pupil works in two different ways. When increased the range of the pupil focuses on the distances of the objects. As to when decreased it is harder to focus on the objects. Once the object passes the pupil it enters the lens, which can properly focus on the rear of the eye. Adaption allows the lens to change the thickness by flattening objects at a distance, or becoming rounded for closer objects. The eye’s retina then sends the image to the brain. The retina has a thin layer of nerves in the back of the eyeball. They consist of two light sensitive cells known as the rods and cones. Rods are cylinder shaped cells that are highly sensitive to light. Cones are well cone shaped and they are for sharp focus and color. The cones concentrate on the fovea, which allows us to focus on a certain object clearly. Rods and cones have to adaptations, dark and light. Darkness adaptation is leaving a well-lit room and entering a dim room. Light adaptation is the opposite. When stimulated, the eye triggers a neural response that is the transmitted to the...
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