Q8 of 102 Page 130

What is meant by Power of accommodation of the eye? Name the muscles of the eye responsible for the same...................................................

The process of focusing the eye at different distances is called the power of accommodation. The ciliary muscles are responsible for the power of accommodation.


More from this chapter

All 102 →
6

Enumerate the common defects of vision, their causes and the possible methods of correcting them.

 7

Name the three ear ossicles. How do they contributee to the mechanism of hearing?

 1

With reference to the functioning of the eye, answer the questions that follow:

(a) What is meant by the power of accommodation of the eye?


(b) What is the shape of the lens during (1) near vision (2) distant vision ?


(c) Name the two structures in the eye responsible for bringing about the change in the shape of the lens.


(d) Name the cells of the retina and their respective pigments which get activated

 2

With reference to the human ear, answer the questions that follow:

(a) Give the technical term for the structure found in the inner ear.


(b) Name the three small bones present in the middle ear.


What is the biological term for them collectively?


(c) Name the part of the ear associated with


(d) Name the nerve, which transmits messages from the ear to the brain.