1. Expected Performance: (B.21) Describe the structure and function of the human eye.

4.  Use the rubric to create an eye diagram. Be sure to label and give the functions of each term listed.  You are aloud to use your science textbook and the computer to help you with this task.  We will view the remainder of the power point to gain extra clarity on all the parts of the eye.  We will take an eye assessment on the computer to assess our understanding.

5.  The transparent front part of the eye that covers the iris and the pupil.  The cornea refracts light and helps focus on objects!

6.  The iris is a ring of muscle that contracts and expands to control the size of the pupil.  Controls the amount of light reaching the retina  Colored part of the eye

7.  An opening by which light enters the inside of the eye (retina)  Appears black because most of the light entering the eye is absorbed by the tissue inside the pupil  The pupil gets wider in the dark but narrower in light.

8.  A transparent structure in the eye used to refract light to be focused on the retina

9.  The vitreous is the transparent, colorless, gelatinous mass that fills the space between the lens of the eye and the retina lining the back of the eye

10.  The retina is a light sensitive tissue lining the inner surface of the eyeeye  The retina has two kinds of cells that detect light ◦ Rods  Dim light ◦ Cones  Red, Green, and Blue light

11.  Receives the signals from the Retina’s rods and cones  The optic nerve, also called cranial nerve II, transmits visual information from the retina to the brain.retinabrain Eye Brain

12.  http://www.enchantedlearning.com/subjects /anatomy/eye/label/labeleye.shtml http://www.enchantedlearning.com/subjects /anatomy/eye/label/labeleye.shtml  Go to the above cite and take the quiz using the vocabulary supplied in the box  After you do the best you can, check your answers!