(a) mention any two components of blood. (b) trace the movement of oxygenated blood in the body. (c) write the function of valves present in between atria and ventricles. (d) write one structural difference between the composition of artery and veins.
Answers
Answer: components of blood: plasma, red blood cells
movement of blood in body:
Stage 1: Pulmonary Circulation
The blood from all parts of the body, enter the heart through both the vena cava and pour into the right auricle. As the valves open, the blood flows into the right ventricle. Now, the blood travels to the lungs for purification or oxygenation of the blood through a special artery called the pulmonary artery.
After getting oxygenated, the oxygenated blood comes to the heart's left auricle through the pulmonary vein.
Stage 2: Systemic Circulation
After entering the heart through the pulmonary artery, the blood flows from the left auricle to the left ventricle. Later, this oxygenated blood is pumped out to all the parts of the body through the largest artery called Aorta. This is called systemic circulation.
Circulation of blood from heart to all parts is systemic circulation and circulation of blood from heart to lungs is called pulmonary circulation.
structural difference: Arteries have very thick walls to withstand very high pressure as oxygenated has more pressure than deoxygenated ones. Meanwhile, veins have thin walls.
hope it helps !! : )
Answer:
Explanation:
Plasma and formed elements
Oxygenated blood from the lungs--back to the heart--to the aorta---to other parts of the body through arteries nd artrioles
C)arteries are thicker than veins