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Human beings have a significant ability ...

Human beings have a significant ability to maintain and moderate the respiratory rhythm to suit demands of the body. For it we have
Respiratory rhythm centre in medulla -R
Pneumotaxic centre in pons -RT
Chemosensitive area in medulla -`C_(1)`
Peripheral chemoreceptors in aortic arch and carotid artery -`C_(2)`
Find out the correct path for regulation of respiration.

A

`C_(1)to underset(R)underset(uarr)(PT)to C_(2)`

B

`PTto underset(R)underset(uarr)(C_(2))to C_(1)`

C

`PT to underset(C_(1))underset(uarr)(R)to C_(2)`

D

`C_(2)R to PT to C_(1)`

Text Solution

Verified by Experts

The correct Answer is:
C
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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 suti 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 overset((i))"_______" is primarily responsible for this regulation. Another centre present in the pons region of the brain called overset((ii))"_______" can moderate the functions of the repiratory rhytm cenre. Neutral signal from this cenre cen reduce the duration of overset((iii))"_______" and thereby alter the respiratory rate. A overset((iv))"_______" is situated adjacent to the rhythm centre which is highly sensitive to CO_(2) and hydrogen ions.

Pick out the correct statements: a) Pneumotaxic centre moderates the functioning of respiratory rhythm centre. b) Pneumotaxic centre is primarily responsible for regulation of respiratory movements. c) Decrease in pH of cerebrospinal fluid is detected by medulla. d) The role of carbon dioxide in the regulation of respiratory rhythm is quite insignificant.

Which of the following statements are CORRECT ? I. A specialized center present in the medulla region of the brain called respiratory rhythm center is primarily responsible for the regulation of respiration. II. A Chemosensitive area is situated adjacent to the rhythm which is highly sensitive to O_2,CO_2 and hydrogen ions . III . Receptors associated with aortic arch and carotid artery also can recognize changes in CO_2 and H^+ concentration and send necessary signals to the rhythm center for remedial actions. IV The neural signal from the pneumatic center can increase the duration of inspiration and thereby alter the respiratory rate .

Go through the following statements (i) the peripheral chemoreceptors for regulation of respiration are located in carotid veins and arch of aorta (ii) the primary effect of pneumotaxic centre is to control the switch off point of inspiratory signal and thus limit inspiraton (iii) the chemosensitve area for brain for respiratory control is highly sensitive to O_(2) concentration (iv) In case of fetal haemoglobin the oxygen haemoglobin dissociation curve is shifted toward left which of these are correct ? (a) i, ii & iv (b) ii and iv (c) ii, iii & iv (d) iii and iv

A specialized centre present in the medulla region of the brain called _________________A_______________ is primarily responsible for this regulation. Another centre present in the pons region of the brain called _________________B_______________ can moderate the funtions of the _________________A_______________. Neural signal from this centre can _________________C_______________ the duration of inspiration and thereby alter the respiratory rate. _________________D_______________ is situated adjacent to the rhythm centre which is highly sensitive to _________________E_______________