Air moves out of the lungs when the

(a) diaphragm relaxes and the rib cage moves inward.

(b) air pressure inside the lungs is less than the external air pressure.

(c) diaphragm contracts and the rib cage expands.

(d) air pressure inside the lungs is the same as the external air pressure.

Question

Demarion Mills

Biology

18 July, 03:15

Air moves out of the lungs when the

(a) diaphragm relaxes and the rib cage moves inward.

(b) air pressure inside the lungs is less than the external air pressure.

(c) diaphragm contracts and the rib cage expands.

(d) air pressure inside the lungs is the same as the external air pressure.

+2

Answers (2)

Know the Answer?

Marlene Morales · Answer 1

When the diaphragm relaxes, air is forced out of the lungs.

Zain Cruz · Answer 2

The diaphragm relaxes, and the dome moves upwards.

As for the ribs, they move upwards and outwards in inspiration, again to increase the volume of the chest cavity, and downwards and inwards in expiration.

Air moves out of the lungs when the(a) diaphragm relaxes and the rib cage moves inward.(b) air pressure inside the lungs is less than the external air pressure.(c) diaphragm contracts and the rib cage expands.(d) air pressure inside the lungs is the same as the external air pressure.

Air moves out of the lungs when the

(a) diaphragm relaxes and the rib cage moves inward.

(b) air pressure inside the lungs is less than the external air pressure.

(c) diaphragm contracts and the rib cage expands.

(d) air pressure inside the lungs is the same as the external air pressure.