University:
Michigan State University
Course:
ANTR 211 | Human Tissues and Cells for Medical Illustrators
Academic year:

2019
Views:

304

Pages:

1
Author:

cinquennehgz

Vision and the Structures of the Eye - Multiple Choice Test KEY Name: _________________________ Date: __________ Class: _________________ 1 The 3 layers of the eyeball are: 6 The ____ is made up of tiny muscle fibers that control the opening for light to come in. A iris B lens C cornea D retina 7 The ____ has miilions of nerve endings called photoreceptors. A sclera, cornea and retina. B iris, choroid and retina. C sclera, choroid and retina. D sclera, choroid and cornea. E none of the above 2 ____ of all sense receptors are in the eye. A None B 10% C 70% D 100% 3 The cornea is associated with which layer of the eye? A iris B lens C cornea D retina 8 A dead zone B lacrimal gland C optic nerve D blind spot A sclera B choroid C retina D all of the above 4 This area of the retina that has the most acute vision is the: A sclera B choroid C fovea centralis D iris 5 The _____ is the opening where light enters the eye. A sclera B iris C pupil D choroid The optic disc has no photoreceptors of its own, so is called the _____ ______: 9 Rods and cones: A are photoreceptors B see black and white and color respectively C number 250 million in the retina D all of the above 10 The ____ sends some fluid across the eye to keep it moist. A eye lashes B cornea C sclera D lacrimal gland