Question

"Докажите, что по большому кругу кровообращения к органам идёт артериальная кровь, а возвращается от органов к сердцу венозная." Помогите пожалуйста

Answer 1

Когда кровь артериальная идёт от сердца и лёгких, насыщенная кислородом, она отдает, идя по кровеносной системе к органам ,а потом, после того, как кровь отдала органам кислород, потом по венам кровь возвращается к сердцу за новой порцией кислорода.

Answer 2

The Circulatory System and Blood Flow

The circulatory system is responsible for transporting oxygen, nutrients, hormones, and other essential substances throughout the body. It consists of the heart, blood vessels, and blood. Blood flow within the circulatory system follows a specific pattern, with arterial blood going to the organs and venous blood returning to the heart.

Arterial Blood Flow

Arterial blood refers to the oxygenated blood that is pumped out from the heart and delivered to the organs and tissues of the body. This blood is rich in oxygen and nutrients, which are necessary for the proper functioning of the organs. Arterial blood flow begins when the heart contracts, forcing blood out of the left ventricle and into the aorta, the largest artery in the body. From the aorta, the arterial blood is distributed through a network of smaller arteries and arterioles to reach the organs and tissues.

Venous Blood Flow

Venous blood refers to the deoxygenated blood that has already passed through the organs and tissues and is returning to the heart. After delivering oxygen and nutrients to the organs, the blood becomes deoxygenated and carries waste products, such as carbon dioxide, back to the heart for elimination. Venous blood flow starts in the capillaries, the smallest blood vessels, where the exchange of oxygen, nutrients, and waste products occurs. From the capillaries, the blood enters venules, which then merge to form veins. The veins carry the venous blood back to the heart, specifically to the right atrium, where it will be pumped to the lungs for oxygenation.

Conclusion

In conclusion, blood flow within the circulatory system follows a specific pattern. Arterial blood, which is oxygenated and nutrient-rich, is pumped out from the heart and delivered to the organs and tissues. After delivering oxygen and nutrients, the blood becomes deoxygenated and carries waste products back to the heart as venous blood. The venous blood is then pumped to the lungs for oxygenation before returning to the heart to complete the circulatory cycle.

I hope this explanation helps! Let me know if you have any further questions.