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Regulation of Respiration

The part of t...

Question

The part of the brain 'X' contains a special neural centre that moderates the cardiac function through ANS as well as regulates the respiratory rhythm according to the need of the body. Identify 'X'.

A

Pons

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B

Hypothalamus

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C

Cerebellum

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D

Medulla oblongata

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Solution

The correct option is D Medulla oblongata
Answer (2)
Respiratory rhythm centre is a specialised centre located in the medulla region of the hind brain.

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Q. Fill up the blanks in the following paragraph by selecting the correct option.
Human beings have a significant ability to maintain and moderate the respiratory rhythm, to suit the demands of the body tissues. This is done by the neural system. A specialised centre present in the medulla region of the brain called ___(i)___ is primarily responsible for this regulation. Another centre present in the pons region of the brain called ___(ii)___ can moderate the functions of the respiratory rhythm centre. Neural signal from this centre can reduce the duration of ___(iii)___ and thereby alter the respiratory rate. A __(iv)__ is situated adjacent to the rhythm centre which is highly sensitive to

C O_{2}

and hydrogen ions.

Q. Give the technical term for the following.
The lower part of the brain, which contains reflex centre like cardiac centre, respiratory and vasomotor centre.

Q. Part of the brain containing the cardiac centre, respiratory centre and vomiting centre is ___ .

Q. Pneumotaxic centre can moderate the functions of respiratory rhythm centre by

Q. Consider the given statements and select the option that correctly states them as true(T) or false(F).
a. Increased asthmatic attacks in certain seasons are related to inhalation of seasonal pollen.

b. The part of brain where vomit centre is present, also regulates the respiratory rhythm according to the need of the body.

c. Cigarette smoking causes inflammation of trachea and bronchi.

d. Expiration is initiated due to contraction of diaphragm.

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