What happens to the lungs when the body inhales?

Answer 1

When you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. This increases the space in your chest cavity, into which your lungs expand. The intercostal muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.

As your lungs expand, air is sucked in through your nose or mouth. The air travels down your windpipe and into your lungs. After passing through your bronchial tubes, the air finally reaches and enters the alveoli (air sacs).

Answer 2

Your lungs are known as the "respiratory center" of your body. They exchange all sorts of gases such as carbon dioxide, oxygen and other byproducts. When you inhale your diaphragm goes up, and then when you exhale your diaphragm will flatten. The portion of your lungs called the "ALVEOLI" is what exchanges the gases. This part is 1 cell layer thick, and can have easy exchange of carbon dioxide and oxygen.

Answer 3

The lungs fill with air and expand as you inhale, and they empty of that air and deflate as you exhale.
they get bigger
When you breath in, your diaphragm- an upside down bowl shaped muscle at the bottom of your rib cage- contracts and flattens. This creates a vacuum in your chest cavity, forcing air into your lungs and making them expand. When you exhale, the diaphragm relaxes, and the air is pushed back out.

Answer 4

On inhalation, the diaphragm is the first to move. The nose hairs filter dust, germs, and debris. The air passes through the sinuses where it is warmed. It enters the main bronchi, then into the lungs. The muscles and cartilage allows the ribcage and each lung to expand. As air travels into the lungs, it passes over the grape-like bunches of aveoli, which are like upside down trees. The aveoli have a rich supply of blood vessels around them. Hemoglobin, carried on Red Blood Cells, exchanges Carbon Dioxide and picks up oxygen as it passes the aveoli. Already, the brain senses the intake of O2 and rising CO2 in the lungs, and triggers exhalation. Though the lungs have lower lobes, few people breathe as deeply as they should; put another way, most people breathe too shallowly. We repeat this process 18 to 20 times per minute.

Note: People with emphysema do not rely on rising CO2 and lowered O2 to trigger breathing. The brain becomes accustomed to HIGHER Carbon Dioxide, so even though the person cannot take in enough O2, giving the person high rates of external oxygen can actually make the person stop breathing completely. While normal lungs can handle 8 Liters per minute of O2 by mask or nasal cannula, a person with emphysema can only handle about 2 Liters per minute of O2 by mask or nasal cannula.

Answer 5

When this happens, your lungs and the rib cage (with muscles between each rib) expand when inhaling, and return to their previous size.

Answer 6

its kind of like a balloon. when you inhale the air goes into your lungs so they expand

Answer 7

it actually shrinks 6 meters but when you breathe it turns back into actual size.

Answer 8

lungs expand