Question

Как движется кровь по малому кругу кровообращения.Что происходит в капиллярах лёгких? Помогите плииз(надо кратенько и ясно) спс за ранее

Answer 1

Малый круг кровообращения начинается от правого желудочка сердца. Венозная кровь по легочным артериям поступает в легкие. В легких артерии образуют густую капиллярную сеть, здесь происходит газообмен. обогащается кислородом и освобождается от углекислого газа. Из венозной кровь превращается в артериальную. По легочным венам артериальная кровь поступает в левое предсердие, где заканчивается малый круг кровообращения. Из левого предсердия кровь поступает в левый желудочек, а от него вновь направляется по сосудам большого круга кровообращения.

Answer 2

Blood Circulation in the Pulmonary Circuit

In the pulmonary circuit, blood is pumped from the heart to the lungs and back. The process can be summarized as follows:

1. Right Ventricle: Deoxygenated blood from the body enters the right atrium and then flows into the right ventricle. 2. Pulmonary Artery: The right ventricle pumps the deoxygenated blood into the pulmonary artery. 3. Lungs: The pulmonary artery carries the deoxygenated blood to the lungs, where it enters the capillaries surrounding the alveoli. 4. Gas Exchange: In the capillaries of the lungs, oxygen from the inhaled air diffuses into the blood, while carbon dioxide from the blood diffuses into the alveoli to be exhaled. 5. Pulmonary Veins: Oxygenated blood from the lungs is collected in the pulmonary veins. 6. Left Atrium: The pulmonary veins carry the oxygenated blood back to the heart, specifically to the left atrium. 7. Left Ventricle: The left atrium contracts, pushing the oxygenated blood into the left ventricle. 8. Systemic Circulation: The left ventricle then pumps the oxygenated blood into the aorta, initiating the systemic circulation to deliver oxygen to the rest of the body.

Capillaries in the Lungs

In the capillaries of the lungs, several important processes occur:

1. Gas Exchange: As mentioned earlier, oxygen from the inhaled air diffuses into the blood, while carbon dioxide from the blood diffuses into the alveoli to be exhaled. 2. Exchange of Nutrients and Waste Products: Capillaries in the lungs also facilitate the exchange of nutrients and waste products between the blood and the surrounding lung tissues. 3. Regulation of Blood Flow: The capillaries in the lungs play a role in regulating blood flow. They can constrict or dilate to control the amount of blood flowing through them, depending on the body's needs.

Overall, the capillaries in the lungs are crucial for gas exchange and the exchange of nutrients and waste products, ensuring that oxygen is delivered to the blood and carbon dioxide is removed.

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