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प्रश्न
The exact location of the Yellow spot
उत्तर
Yellow spot – Located at the centre of the posterior portion of the retina.
संबंधित प्रश्न
For human ears, the audible range is 20 Hz to 20,000 Hz.
State the exact location of the Organ of Corti
The three parts of human ear contributing in hearing are-
Mention if the following statement is true (T) or false (F) Give reason.
Malleus incus and stapes are collectively called the ear ossicles.
Given below is certain structure. Write against them its functional acivity.
organ of corti and ……………….
Where is the oval window located? Briefly mention its function.
Where is the Utriculus located? Briefly mention its function.
Name the part of the ear associated with dynamic balance.
With reference to the human ear, answer the question that follow:
Name the nerve, which transmits messages from the ear to the brain.
The figure below is the sectional view of a part of the skull showing s sense organ:
Name the sense organ.
There are three small bones in the muddle ear – anvil, hammer and stirrup :
(a) Which of these bones is in touch with ear-drum ?
(b) Which of these bones is in touch with oval window ?
Name the following:
Part of internal ear related to balance.
The diagram alongside represents the structure of the human ear.
(i) Write the names of the parts labelled a to g.
(ii) State briefly the functions of the parts b, d, and g.
(iii) Name the main division of the ear.
(iv) Which is the smallest bone in the human body?
(v) What is labyrinth?
State the functions of the following:
Semi-circular canals
Long answer question
Draw the neat labelled diagram of the human ear.
The hearing range of the human ear is ______.
The part of the ear that turns pressure variations into electrical signals is ______.
The median canal of cochlea is filled with ______.
The spiral organ possessing sensory cells for hearing is ______.
- Draw a neat and well labelled diagram of the membranous labyrinth found in the inner ear.
- Based on the diagram drawn above in (i), give a suitable term for each of the following descriptions:
- The structure responsible for hearing.
- The sensory cells that help in hearing.
- The membrane-covered opening that connects the middle ear to inner ear.
- The nerves that carry impulses from the ear to the brain.
- The tube which equalises the air pressure on either side of the ear drum.
