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प्रश्न
The part of brain which controls the involuntary action such as heart beat, breathing, blood pressure, etc. is :
(a) pons
(b) medulla
(c) cerebrum
(d) cerebellum
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उत्तर
(b) medulla
The medulla controls various involuntary actions such as the heart beat, breathing, blood pressure and the peristaltic movement in the body.
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संबंधित प्रश्न
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.
Give three examples of reflex actions.
Fill in the following blank with suitable word :
A neuron which carries an impulse to the brain is called a ........... neuron.
What is meant by receptors and effectors? Give two examples of each.
Give the various functions of brain.
Which of the following helps in maintaining posture and balance of the human body?
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?
One of the following gives the correct sequence of the components in a reflex arc. This is:
Note the relationship between the first two words and suggest the suitable word/words for the fourth place.
Stimulus : Receptor :: Impulse : ______.
State whether the following is simple reflex, conditioned reflex or neither of the two.
Lifting up a book
What type of reflex is the following?
Sweating in summer
What type of reflex is the following?
Solving mathematical sums
What type of reflex is the following?
Blinking of the eye
Give Technical Term:
The scientist, who conducted experiment on a dog to show conditioned reflex
A change in the environment that causes an animal to react is called ______.
Which of the following is an example of unconditioned reflex?
Why have reflex arcs evolved in animals?
Categorise the following under stimulus and response.
Seeing a green light turning into red at a road crossing before applying the brakes.
