Quize Visual pathway Welcome to your Quize Visual pathway 1. Fovea centralis is the most sensitive part of the retina because of all of the following reasons, EXCEPT: A. Densely packed cones with short outer segment B. All layers are shifted aside leaving outer segments to be hit directly by light. C. Wide presentation in the occipital primary visual cortex. D. 1:1 convergence. None 2. The only receptors in the body stimulated by hyperpolarization are: A. Organ of Corti B. Photoreceptor C. Free nerve ending D. Pacinian corpuscle None 3. What is correct about rods? A. Rods have iodopsin for photosynthesis. B. High sensitivity to light more than cones C. Rods dedicated deep details more than cones. D. Rods differentiate colors more than cones. None 4. Which of the following events take place during dark current (rest)? A. Rods and cones are depolarized B. The inner segment contains a Na+ that is maintained open by cGMP. C. Bipolar cells are excited. D. The outer segment contains an active Na+ pump. None 5. The optic nerve exits the orbit through which of the following structures? A- Blindspot B- Fovea C- Macula lutea D- Yellow spot None 6. - What is of the following true regarding to retina A- Contain rods only. B- Fovea avascular C- Contain equal number of rods and cons. D- Macula medial to optic disc None 7. - Rt lower quadrant homonymous hemianopia A- Lt parietal radiation B- Lt temporal C- Myers loop D- Rt occipital None Time's up
