Question

describe the process of breathing

Answer 1

breathing means inhaling oxyzen and exhaling carbon dioxide in human beings. In plants,inhaling carbon dioxide and exhaling oxyzen. This is why plants are very important in our life as it gives us oxyzen to breath in.

Answer 2

Thoracic Diaphragm :-

The diaphragm is the dome-shaped muscular organ which serves as the main muscle of respiration and plays an important role in the process of breathing.

Diaphragm separates the thoracic cavity from the abdominal cavity.

Thoracic cavity :-

Thoracic cavity, also known as chest cavity and is separated from the abdomenal cavity by the diaphragm.

It is surrounded by the ribs, the vertebral column and the sternum.

There are two openings of thoracic cavity - thoracic inlet and thoracic outlet.

During Inhale :-

Diaphragm contracts and flattens.

Volume of the thoracic cavity increased.

Pressure in the lungs decreased, and air rushes in.

During Exhale :-

Diaphragm relaxes.

Volume of the thoracic cavity decreased.

Pressure in the lungs increased, and air rushes out.