Why does air enter the body when you inhale?

Answer 1

air contains oxygen which is a requirement for our respiration process. oxygen enters into our lungs and into the blood and carbon dioxide is excreted and then exhaled out..which is then used up plants to excrete oxygen. and thus a complete cycle!

Answer 2

== == ---- When you breath in, your diaphragm (a dome shaped muscular structure forming the floor of the thoracic cavity) and intercostal muscles (the muscles in the spaces between the ribs) contract. This causes the ribs to move upwards and outwards, and the diaphragm is pulled downwards, expanding the volume in the thoracic cavity. Because pressure decreases as volume increases, the pressure in the lungs becomes much less than the pressure in the atmosphere. Air moves from an areas of high pressure to areas of low pressure, so air is drawn into the lungs.

== == == ==

Answer 3

Because air contains many nutrients such as O2, Nitrogen, and Carbon Dioxide, our body takes the air in, compresses it, and uses the nutrients to fuel our bodies. After, the used air, called methane, is sent to the intestines, where it is either farted or saved for further air use. The reason why we breathe out is to release excess nutrients from the air. Vitamins also come from air; for example, Vitamin A stands for Vitamin "Air"

Answer 4

When you inhale, the diaphragm and rib muscles contract, causing the chest cavity to expand. This creates a pressure difference between the lungs and the outside air, allowing air to be drawn into the lungs to fill the expanded space.

Answer 5

Because your cells are going to die.