WGU c107 Module 20 Vision QUESTION AND ANSWER 2022~2023

WGU c107 Module 20 Vision QUESTION AND ANSWER 2022~2023Which of the following components of the eye is responsible for focusing light on the back of the eye? Ciliary body The anterior fibrous tunic of the sclera is highly modified to form a transparent area of the eye known as the: Cornea What is the order of the eyeball covering from outside to inside? Fibrous tunic, vascular tunic, nervous tunic What is the majority of the eyeball volume? Vitreous body Where is the retina located in the eye? The posterior aspect of the eye. Which part of the retina has the greatest visual acuity? Fovea Which cells are stimulated directly by light for vision? Photoreceptors Which sensory cells are color specific? Cones Which molecules sense light? All of these are correct. Rhodopsins Photopsins Pigments Which of the following structures is NOT properly matched? Cornea concentrates light. - The cornea is a clear, protective coating. Once light is converted to an electrical signal, how is it communicated to the brain? Optic nerve to optic tract to the occipital lobe If the lens of the eye focuses light incorrectly onto the retina, it must be corrected with glasses. In which case is light focused in front of the retina? Myopia - Nearsightedness is myopia and light is focused in front of the retina.