Question

Explain respiration in humans.

@Itzbrainlyaarya ❣️​

Answer 1

Answer:

The process of getting oxygen into the body and releasing carbon dioxide is called respiration. ... Breathing is only the movement of oxygen into the body and carbon dioxide out of the body. The process of respiration also includes the exchange of oxygen and carbon dioxide between the blood and the cells of the body.

Answer 2

Answer:

Respiration is the process by which energy is released from food in our body. The function of respiratory system is to breathe in oxygen for respiration producing energy from food, and to breathe out carbon dioxide. With the help of lungs gases are exchanged between the blood and the air. Gases exchanged are oxygen and carbon dioxide. We can live without food and water for many days but we cannot live for more than a few minutes without air, as it is necessary for breathing. So, before discussing the human respiratory system, it is necessary to know the process of breathing which is an important part of respiration.

Process of Breathing:

During breathing we take air in to our lungs through the nose, and then expel it. The taking in of air rich in oxygen in to the body during breathing is called inhalation and giving out of the air rich in carbon dioxide is called exhalation. Both the process takes place regularly during breathing. Therefore, a breath means ‘one inhalation plus one exhalation’.

Mechanism of breathing is as follows:

In this we will learn how air from outside is sucked in to our lungs during inhalation and how air from lungs is pushed out during exhalation and this happens with the help of lungs. Lungs are connected to our nostrils (holes in the nose) through nasal passage and wind pipe. When we inhale air, it enters our nostrils, passes through nasal passage and windpipe, and reaches our lungs. Our two lungs hang in an airtight space in our body called ‘chest cavity’. Around the side of the chest cavity is the rib cage with sheets of muscles between the ribs which encloses the lungs in it. At the bottom of the chest cavity is a curved sheet of muscle called diaphragm. Therefore, it forms the floor of the chest cavity. So, breathing involves the movement of the rib cage and the diaphragm.

If it helps you, please mark it as Brainliest.

Namaste.