ENDOCRINE ORGANS AND RESPIRATORY SYSTEM
RESPIRATORY SYSTEM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
expand
|
|
contract
|
|
reflect
|
|
None of the above
|
Detailed explanation-1: -When you breathe out, or exhale, your diaphragm and rib muscles relax, reducing the space in the chest cavity. As the chest cavity gets smaller, your lungs deflate, similar to how air releases from a balloon.
Detailed explanation-2: -When you inhale (breathe in), air enters your lungs, and oxygen from that air moves to your blood. At the same time, carbon dioxide, a waste gas, moves from your blood to the lungs and is exhaled (breathed out). This process, called gas exchange, is essential to life.
Detailed explanation-3: -When you inhale, your diaphragm contracts (tightens) and moves downward. This creates more space in your chest cavity, allowing the lungs to expand. When you exhale, the opposite happens-your diaphragm relaxes and moves upward in the chest cavity.
Detailed explanation-4: -The two main steps involved in breathing are inhalation and exhalation. Inhalation is a process through which air is taken into the lungs. In this process, the ribs move forward while the diaphragm contracts. The volume of the thoracic cavity increases and the pressure inside the lungs is reduced.