HSCI 390 Exam 1 with Questions and Answers

HSCI 390 Exam 1 with Questions and Answers the transparent layered tissue of eye that acts as a barrier to environmental factors while allowing light to pass through ANSWER cornea a muscle control diaphragm that controls the amount of light that enters the eye ANSWER iris/pupil part of eye that changes size to control the focal plane of the light entering the eye ANSWER lens muscle and ligaments that control lens' shape and size ANSWER ciliary body/zonule part of eye that controls the amount vitreous solution within the eye; important for controlling eye pressure ANSWER trabecular meshwork/Schlemm's canal light-sensitive neuron in the back of eye ANSWER photoreceptors What are the two types of photoreceptors? ANSWER rods and cones inhibitory interneurons; provide feedback to photoreceptors; light-adaptation ANSWER horizontal cells connect outer retina to inner retina ANSWER bipolar cells