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प्रश्न
In what two ways is the yellow spot different from the blind spot?
उत्तर
Yellow spot is the region of brightest vision and contains maximum sensory cells whereas a blind spot contains no sensory cells and this is the point of no vision.
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संबंधित प्रश्न
What is the least distance of distinct vision for a normal human eye?
The term " accommodation" as applied to the eye, refers to its ability to:
(a) control the light intensity falling on the retina
(b) erect the inverted image formed on the retina
(c) vary the focal length of the lens
(d) vary the distance between the lens and retina
Nocturnal animals (animals which sleep during the day and come out at night) tend to have wide pupils and lot of rods in their retinas. Suggest reasons for this.
The region in the eyes where the rods and cones are located is the
Define the following:
Blind spot
Answer the following question.
Trace the sequence of events Whichoccur when a bright light is focused on your eyes.
Answer the following question.
Write the structure of eye lens and state the role of ciliary muscles in the human eye.
What is meant by power of accommodation of the eye?
What is a stereoscopic vision?
Name the following:
The part of the eye responsible for change in the size of the pupil.
Give Technical Term:
The fluid which conveys the vibrations of sound in the cochlea and semicircular canals.
Give Technical Term:
The nutritive layer of the eye which also presents reflection of light.
State the Function:
Iris
Choose the Odd One Out:
Write the function of the human eye and label parts of the figure given below.
The image formed on the retina of the human eye is ____________.
The coloured portion of the eye is the ______.
Explain the role of the part of human eye responsible for power of accommodation of human eye.
Name the following:
Place of best vision in the retina of the eye.
The figure given below refers to the vertical section of the eye of a mammal. Study the figure carefully and answer the following questions.
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- Label the guidelines shown as 1 to 10.
- Write one important role of parts shown as 3 and 7.
- Write one structural difference between the parts shown as 9 and 10.
- Mention one functional difference between the parts shown as 6 and 8.
