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प्रश्न
Which of the following is not an involuntary action?
पर्याय
Vomiting
Salivation
Heart beat
Chewing
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उत्तर
Chewing
Explanation -
Involuntary action is the actions which are happening "without" the conscious choice of the organism. So chewing which is under conscious control is a voluntary action.
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संबंधित प्रश्न
Give examples of unconditional reflexes
Which of the following is not a natural reflex action?
A. Knee-jerk
B. Blinking of eyes due to strong light
C. Salivation at the sight of food
D. Sneezing when any irritant enters the nose
Name one gustatory receptor and one olfactory receptor present in human beings.
If we happen to touch a hot object unknowingly, we immediately pull back our hand. What is this type of action known as?
Which part of the eye contains cells which are sensitive to light?
Fill in the following blank with suitable word :
A neuron which carries an impulse to the brain is called a ........... neuron.
What is the difference between a voluntary and an involuntary action? Which kind of action is digestion? Explain your choice.
When you smell a favourite food your mouth begins to water (that is, you secrete saliva). Write down what is the example of the smell of the food?
The part of brain which takes part in regulating respiration in the human body is :
(a) medulla
(b) pons
(c) cerebellum
(d) cerebrum
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
Write down the following activities in the correct order for a simple reflex arc:
(a) impulse travels in the motor fibre
(b) impulse travels in the sensory fibre
(c) effector organ stimulated
(d) impulse crosses the synapse
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Stimulus : Receptor :: Impulse : ______.
Complete the following statement by choosing the correct alternative from the choice given in bracker:
Reflex action is controlled by
(i) brain (ii) spinal cord
(iii) autonomic (iii) peripheral nervous system
State whether the following is simple reflex, conditioned reflex or neither of the two.
Contraction of eye pupil
Reflex action is controlled by the
State whether the following is
Sneezing
State whether the following is
Playing on the Keyboard
What type of reflex is the following?
Sweating in summer
Which sensory organ is involved in vertigo (sensation of oneself or objects spinning around)?
Categorise the following under stimulus and response.
Seeing a green light turning into red at a road crossing before applying the brakes.
