Match the following columns and select the correct option :

Column I Column II
(a) Pneumotaxic centre (i) Alveoli
(b) O2 dissociation curve (ii) Pons region of the brain
(c) Carbonic anhydrase (iii) Haemoglobin
(d) Primary site of exchange of gases (iv) R.B.C.
Options:
(a) (b) (c) (d)
1. (i) (iii) (ii) (iv)
2. (ii) (iii) (iv) (i)
3. (iii) (ii) (iv) (i)
4. (iv) (i) (iii) (ii)
Subtopic:  Respiratory System: Exchange of Gases | Respiratory System: Regulation of Respiration | Respiratory System: Transport of Gases |
 94%
From NCERT
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The dorsal respiratory group of the respiratory center in the brain stem stimulates:

1. external intercostals 2. internal intercostals
3. diaphragm 4. rectus abdominus
Subtopic:  Respiratory System: Regulation of Respiration |

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