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प्रश्न
Which of the following statements is correct about receptors?
पर्याय
gustatory receptors detect taste while olfactory receptors detect smell
both gustatory and olfactory receptors detect smell
auditory receptors detect smell and olfactory receptors detect taste
olfactory receptors detect taste and gustatory receptors detect smell
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उत्तर
gustatory receptors detect taste, while olfactory receptors detect smell
Explanation:
Gustatory receptors detect taste; olfactory receptors detect smell; while auditory receptors detect sound.
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संबंधित प्रश्न
What is the role of the brain in reflex action?
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
Fill in the following blank with suitable word :
A neuron which carries an impulse to the brain is called a ........... neuron.
Explain the difference between of the following pair of terms :
cerebrum and cerebellum
Define reflex arc. Give the flow chart of a spinal reflex arc.
The olfactory receptors in humans are located in :
(a) eyes
(b) tongue
(c) ears
(d) nose
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
Put a tick mark (✓) against the correct alternative in the following statement:
The smell of good food causes watering of your mouth. It is a
Your are driving your bicycle at a fast speed. Suddenly, a small boy comes in front of your cycle and, without wasting any time in thinking, you immediately apply the brakes and accident is avoided. What name is given to such an action?
State whether the following is simple reflex, conditioned reflex or neither of the two:
Sneezing: …………….
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.
Give one example of a conditioned reflex in your own life.
State whether the following is
Sneezing
State whether the following is
Constriction of pupil
What type of reflex is the following?
Sweating in summer
Reflex actions are mediated through ____________.
How is the mode of action in beating of the heart different from reflex actions? Give four examples.
What kind of reflex is cycling?
The diagram given below shows the internal structure of a spinal cord depicting a phenomenon. Study the diagram and answer the following questions.
 |
- Name the phenomenon shown in the figure and define the same.
- Identify the parts labelled as 1 and 2. Write one functional difference between these two.
- Name the bony protective covering and the membranous protective covering of the spinal cord.
- Label the guidelines 3 and 4.
- How is the labelled part 3 different from part 4 with respect to its composition (part of neuron)?
- Give the technical term for the point of contact between the two nerve cells.
- Name the fluid filled inside the central canal of spinal cord.
- Name the term used for a small gap between two neurons.
- Give one example of a neurotransmitter.
- Draw a neat diagram of a nerve cell and label the parts: Perikaryon, Node of Ranvier, Myelin sheath and Axon terminals.
