Question

3. The figure given below refers to the vertical section
of the eye of a mammal. Study the figure carefully
and answer the following questions.
(a) Label the guidelines shown as 1 to 10.
(b) Write one important role of parts shown as 3
and 7.
(c) Write one structural diffeence between the parts
shown as 9 and 10.
(d) Mention one functional difference between 6 and 8 parts shown​

Answer 1

Answer:

4- cornea

1 pupil

3 iris

2. lens

10 optic nerve

9 retina

6 sclera

7. choroid

8.

Answer 2

Answer:

(a)

1 → Aqueous chamber

2 → Lens

3 → Iris

4 → Cornea

5 → Conjunctiva

6 → Sclera

7 → Choroid

8 → Retina

9 → Yellow spot

10 → Optic nerve ( Blind Spot )

(b)

3 → Iris → Regulates the size of the pupil

7 → Choroid → Provides nourishment to the eyes

(c)

9 → Yellow Spot :

Contains maximum no. of sensory cells

Area of best vision

10 → Blind Spot :

Contains no sensory cells

Area of no vision

(d)

6 → Sclera :

Size of the eye

8 → Retina :

Converts the light energy to electrical impulses and sends then to brain through auditory nerve