Science, asked by Avani1459, 3 months ago

19. Give examples for tactual aids, visual aids, auditory aids and optical aids.

20. What parts of the eye are controlled by iris and ciliary muscles respectively?

Answers

Answered by paridhiprakash153

Answer:

Tactual aids, including Braille writer slate and stylus, help the visually challenged persons in taking notes, reading and writing. Auditory aids include cassettes, tape recorders, taiking books and other such devices.

Ciliary ganglion neurons project to the ciliary body and the sphincter pupillae muscle of the iris to control ocular accommodation and pupil constriction, respectively.

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