Tạo các bài học thú vị hơn nhanh hơn
Vietnamese
Trang chủ Tính năng Giá của các gói đăng ký  Cộng đồng
First, the deoxygenated blood goes into the right ____ via the vena cava. Blood then goes into the right ventricle which then pumps the blood out of the heart to the ____. The ____ blood from there goes into the left atrium via the ____ . It then goes into the left ____ , to be pumped out of the heart for the blood to flow all around the ____ . Arteries carry ____ blood away from the heart under high pressure. There is only one exception for artery that carry ____ blood, that is ____ artery. The walls of the arteries are very strong and ____. The layers of ____ give them the strength and the elastic fibres allows them to stretch and spring back. They have a ____ lumen which maintains the blood pressure. Veins carry ____ blood towards the heart under a ____ pressure compared to the arteries. They have ____ walls and thin layers of muscle and elastin. They also have ____ which stop the blood flowing in the wrong direction, which open to let blood flow in one direction and then close to stop the blood flowing backwards. They have a ____ lumen because the blood does not have to be under so much ____. Capillaries are the ____ blood vessels. They allow ____ and ____ to diffuse from the blood into the cells, also allowing ____ from the cells back into the blood. They carry blood from ____ to ____. They have very ____ walls, of one cell thick to allow for effective ____. Blood is the red liquid flowing inside our vessels. It consists of four main components. The liquid components called ____ ,red blood cells, white blood cells and ____. The liquid portion of the blood serves the main function transporting hormones, the soluble products of digestion, as well as waste products, such as urea and ____. The red blood cell is the specialized biconcave cell containing ____ that transport ____ around the body. This cell contains no ____ and ____. The white blood cells are part of the ____ system which help the body to fight against disease. They include phagocyte and ____. Platelets are small fragments of cells that help blood to ____ at the site of a wound.

Circulatory system

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