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प्रश्न
Define reflex arc. Give the flow chart of a spinal reflex arc.
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उत्तर
The path travelled by an impulse during a reflex action is called a reflex arc.
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संबंधित प्रश्न
Fill in the following blanks with suitable words :
Our.............system allows us to react to our surroundings. Information from receptors passes along...........neurons to our brain. Our brain sends impulses along..........neurons to our muscles.
What is spinal cord? What is its main function?
Explain the difference between of the following pair of terms :
receptor and effector
Which of the following helps in maintaining posture and balance of the human body?
The involuntary actions in the body are controlled by :
(a) medulla in forebrain
(b)medulla in hindbrain
(c) medulla in spinal cord
(d) medulla in midbrain
One of the following controls the peristaltic movements of alimentary canal. This one is :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
Which of the following statements is correct about receptors?
The part of brain which takes part in regulating respiration in the human body is :
(a) medulla
(b) pons
(c) cerebellum
(d) cerebrum
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Receptor : Sensory nerve :: Motor nerve : ______.
State whether the following is simple reflex, conditioned reflex or neither of the two:
Lifting up a book: …………………..
Two hungry boys (A and B) enter a restaurant and find a table decorated as follows:
Boy B starts salivating but not A. Explain the reason for this difference.
Explain the following term :
Conditioned reflex
State whether the following is
Playing on the Keyboard
Complete the following sentence with appropriate Word
A reflex arc in man is best described as movement of stimuli from:
Which of the following is an example of unconditioned reflex?
Why have reflex arcs evolved in animals?
