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प्रश्न
What is the difference between reflex action and voluntary action?
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उत्तर
| Reflexes (Involuntary actions) | Vohmtary actions | |
| 1. | Spontaneous due to simuli. | Deliberate due to intention. |
| 2. | Originate due to specific stimuli. | Originate due to thoughts. |
| 3. | Expressed as muscular movements or glandular secretion. | Expressed as muscular movements. |
| 4. | Carried out mostly by the spinal cord and autonomic nervous system, and very few by the brain. | All of them are initiated by the brain. |
| 5. | Mostly protective due to environmental stimuli. | Mostly proauctive i.e a choosing desired goal. |
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संबंधित प्रश्न
State one function each of cerebellum and pons.
When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the cells in your nasal passages which perceive the smell?
All the voluntary actions of our body are controlled by :
(a) cerebrum
(b) cerebellum
(c) pons
(d) medulla
Which of the following statements is correct about receptors?
Differentiate between the following pair of terms:
Stimulus and impulse
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.
Contraction of eye pupil
State whether the following is
Sneezing
Why have reflex arcs evolved in animals?
Categorise the following under stimulus and response.
Pain in the eye if something falls into it.
