Question

Exhalation involves release of ____.​

Answer 1

Answer:

Exhaled air is 4% carbon dioxide, a waste product of cellular respiration during the production of energy, which is stored as ATP. Exhalation has a complementary relationship to inhalation which together make up the respiratory cycle of a breath.

Explanation:

• Exhalation (or expiration) is the flow of the breath out of an organism. In animals, it is the movement of air from the lungs out of the airways, to the external environment during breathing.

• This happens due to elastic properties of the lungs, as well as the internal intercostal muscles which lower the rib cage and decrease thoracic volume.

• As the thoracic diaphragm relaxes during exhalation it causes the tissue it has depressed to rise superiorly and put pressure on the lungs to expel the air. During forced exhalation, as when blowing out a candle, expiratory muscles including the abdominal muscles and internal intercostal muscles generate abdominal and thoracic pressure, which forces air out of the lungs.

Answer 2

Exhaled air contains 4% carbon dioxide, which is a waste product of cellular respiration during energy synthesis and storage as ATP. Exhalation and inhalation have a symbiotic relationship, and together they make up a breath's respiratory cycle.

Explanation:

• The passage of air out of an organism is called exhalation (or expiration). It is the passage of air from the lungs to the external environment through the airways in animals.
• The internal intercostal muscles and the elastic characteristics of the lungs cause the rib cage to drop and the thoracic volume to decrease.
• Exhalation causes the tissue that the thoracic diaphragm has depressed to rise superiorly, putting pressure on the lungs to evacuate the air.
• Expiratory muscles, such as the abdominal and internal intercostal muscles, create abdominal and thoracic pressure during forceful exhalation, similar to when blowing out a candle.