Air moves into the lungs when atmospheric pressure is

Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because 1. there is a negative pressure in the lungs 2. there is a negative intrapleural pressure pulling at the lung walls 3. there is a positive intrapleural pressure 4. pressure in the lungs is higher than the atmospheric pressure

Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure. This negative pressure is achieved when

Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure. This negative pressure is achieved when

What is atmospheric pressure of air?

The length of a faulty barometer is 90 cm and there is a little air above the mercury. When the atmospheric pressure is 76cm of Hg it reads 74.8 cm. What will be the true atmospheric pressure if the reading on the barometer is 74.3cm ?

The pressure of confined air is p. If the atmospheric pressure is P, then :-

The pressure of confined air is p. If the atmospheric pressure is P, then :-

The pressure of confined air is p. If the atmospheric pressure is P, then :-