Question

on or answers the question Maple Choice below refers to an impairment of vision as ision as a result of old age a phe choice thar best completes the statement or am 21. Which of the terms below refers a presbyopia b. myopia c. astigmatism d. macular degeneration 11 in the retina that transforma lighter into serve entral vision of the eye) Select the term that is used to describe photoreceptor call impulse. These cells are also responsible for the central vie a. pupil b. selera of canals of the inner car which includes the c. cones d. rods 73 Which of the terms below refers to the maze-like series of cano semicircular canals and vestibule a. labyrinth b. ossicle c. cochlea d. auricle 24 Which of the terms below refers to the transparent, biconvex body behind (refracts) light rays to bring them into focus a. lens b. retina c. pupil d. cornea biconvex body behind the pupil of the cyc, which ends je need to describe the photoreceptor cell of the retina essential for vision in diam lihtsad peripheral vision a cones b. rods c. pupil d. fovea centralis 26. Select the term that is used to describe the middle, vascular layer of the eye, between the retina and the sclera a. chorid b. iris c. pupil d. lens 27. Which of the terms below refers to the inflammation of the middle ear a vertigo b. Meniere's disease c. otitis media d. otosclerosis 28. Is used to describe a condition where there is the sensation of a nig a. tinnitus b. otitis media c. vertigo d. otosclerosis re is the sensation of a ringing or buzzing in the ears

Answer 1

Ans) 21) a. Presbyopia

Explaination:

- Presbyopia is a normal part of the aging process. It occurs due to hardening of the lens of the eye, causing the eye to focus light behind rather than on the retina when looking at close objects. It is a type of refractive error along with nearsightedness, farsightedness, and astigmatism.

22) c. Cones

Explaination:

- Cone cells, or cones, are photoreceptor cells in the retinas of vertebrate eyes (e.g. the human eye). They respond differently to light of different wavelengths, and are thus responsible for color vision and function best in relatively bright light, as opposed to rod cells, which work better in dim light.

23) a. Labyrinth

Explaination:

- The bony labyrinth (also osseous labyrinth or otic capsule) is the rigid, bony outer wall of the inner ear in the temporal bone. It consists of three parts: the vestibule, semicircular canals, and cochlea. These are cavities hollowed out of the substance of the bone, and lined by periosteum.

24) a .lens

Explaination:

- The lens is a biconvex, transparent structure present in the eye behind the pupil. The lens along with the cornea refracts the light, so as to focus it on the retina. By changing its shape, the lens is capable of changing the focal distance of the eye.