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प्रश्न
What are the various sense organs in our body?
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उत्तर
There are five sense organs in our body. They are the eyes, the ears, the nose, the tongue and the skin.
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संबंधित प्रश्न
How are involuntary actions and reflex actions different from each other?
Briefly explain the following terms : Reflex action
The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the questions:
1) Name the phenomenon that is depicted in the diagram. Define the phenomenon.
2) Give the technical term for the point of contact between the two nerve cells.
3) Name the parts numbered 1, 2 and 3.
4) How does the arrangement of neurons in the spinal cord differ from that of the brain?
5) Mention two ways by which the spinal cord is protected in our body.
Write the names of the regions in hindbrain. Give one function of each region.
Explain the difference between of the following pair of terms :
receptor and effector
Define reflex arc. Give the flow chart of a spinal reflex arc.
Give the various functions of brain.
Which of the following cannot be considered a receptor?
(a) ear
(b) nose
(c) muscle
(d) eye
The contraction of pupil of the eye in the presence of bright light is an example of :
(a) Voluntary reflex
(b) Spinal reflex
(c) Cerebral reflex
(d) Adrenal reflex
Multiple choice question. Tick (✓) the correct choice:
Reflex actions occur under the control of
- brain
- medulla oblongata
- spinal cord
- cerebrum
State whether the following is simple reflex, conditioned reflex or neither of the two:
Sneezing: …………….
State whether the following is simple reflex, conditioned reflex or neither of the two:
Blushing: ……………….
List in tabular form three distinguishing features between cerebrum and cerebellum.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Lifting up a book
Mention, if the following statement is True or False
Reflex action is a unit of nervous action
What will you do if someone pricks your hand with a needle? Elucidate the pathway of response with a neat labelled diagram.
Reflex actions are mediated through ____________.
Which sensory organ is involved in vertigo (sensation of oneself or objects spinning around)?
How is the mode of action in beating of the heart different from reflex actions? Give four examples.
