Which muscle is the primary muscle of respiration? — Zoology | Mockzy

EasyZoologyBreathing and Exchange of Gases

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Which muscle is the primary muscle of respiration?

External intercostal muscle

Internal intercostal muscle

Diaphragm

Sternocleidomastoid

The vital capacity of the lungs is defined as:

What percentage of CO₂ is transported as bicarbonate ions (HCO₃⁻) in the blood?

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Every 100 mL of deoxygenated blood delivers approximately ______ of CO2 to the alveoli.

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