Drawn light
How to draw lungs will be told in this article! The lungs are one of the key organs of vital activity. The first successful breath marks the birth of a human being and the beginning of his life outside the mother’s body. Next, we no longer pay attention to breathing until, for example, we dive underwater. The body instantly makes it clear that it is urgent to inhale, and everything else suddenly loses importance. In our material, through the prism of the anatomy and physiology of the lungs, we will tell you why breathing is so important for humans.
If you correlate the volume of the lungs with their mass, it will become clear that the lungs are really “lungs”. In the unfolded state, the organ occupies about 70% of the thoracic cavity, and the weight of each lung is only 300-500 grams. Nevertheless, lungs got their name not for this reason. Our ancestors, when cutting animal carcasses, lowered the organs into a container of water. It was noticed that the lungs, in this case, do not sink, unlike other organs.
This is due to the fact that they still have some air in them. Since then and to this day in the Russian language, the lungs are called lungs. The total respiratory surface area of the lungs during a deep breath reaches 100 m2, which is about the size of a soccer field. The pulmonary veins carry arterial blood, not venous blood. A person can live with one lung without experiencing any special difficulties. Gas exchange in the lungs occurs constantly: on inhalation, on exhalation and during breath-holding.
Drawing lungs is an intellectual activity that helps develop different parts of the brain! Lung volume in swimmers can increase almost 2 times compared to the average person. The role of the lungs in the human body Many people have known since school that the main function of the lungs is gas exchange. This process ensures the utilization of carbon dioxide (CO2) from the blood and its saturation with oxygen (O2). Oxygen is necessary for humans to carry out highly efficient biochemical reactions that allow cells to obtain a lot of energy.
However, the role of the lungs is not limited to respiration. They have a well-developed immune system, hormone-producing potential, and participate in maintaining acid-base balance and many other processes. We will analyze the functions of this amazing organ in more detail, but before we do so, we need to turn to the structure and principles of its work.
The lungs are located in the thoracic cavity and occupy its lateral parts. Between them lies the mediastinum, and beneath them is the diaphragm, which separates the thoracic and abdominal cavities. Each lung is placed in its pleural sac, which implies an isolated location of the lungs relative to the other organs of the thoracic cavity. Therefore, when an inflammatory process develops in the lungs, it creates an obstacle to its spread to other organs.
The amount of energy in a cell is equivalent to the amount of adenosine triphosphoric acid (ATP) in the cell. So, in the absence of oxygen, oxidizing one molecule of glucose to lactate, the cell receives two molecules of ATP. Meanwhile, with oxygen, there is an opportunity to get 32 molecules of ATP (in this case, the oxidation is much more complete)! Thus, we can say that with oxygen, we can get 16 times more energy than without it.
Let’s get to drawing the lungs immediately!
Lungs Drawing Easy
Step 1
The first step in drawing the lungs is to create two lines, one horizontal line and a vertical line perpendicular to it!
Step 2
The next step is to draw a semi-oval at the base of our lungs
Step 3
From the edges of our drawing, we draw semi-oval lines
Step 4
The next step is to draw the central part of the lungs
Step 5
Draw circles in the central part of the lungs
Step 6
Draw the base of the alveolar outgrowths of the lungs.
Step 7
Beautifully coloring the lungs!
