Which one of the following is the correct statement
for respiration in humans?
(a) Cigarette smoking may lead to inflammation of
bronchi.
(b) Neural signals from pneumotoxic centre in
pons region of brain can increase the duration
of inspiration.
(c) Workers in grinding and stone-breaking
industries may suffer from lung fibrosis.
(d) About 90% of carbon dioxide (CO2) is carried
by haemoglobin as carbamino-haemoglobin.
for respiration in humans?
(a) Cigarette smoking may lead to inflammation of
bronchi.
(b) Neural signals from pneumotoxic centre in
pons region of brain can increase the duration
of inspiration.
(c) Workers in grinding and stone-breaking
industries may suffer from lung fibrosis.
(d) About 90% of carbon dioxide (CO2) is carried
by haemoglobin as carbamino-haemoglobin.