1. What are the three major components that make up the circulatory system and their respective functions?
2. What makes blood special?
3. What are the cellular components of the blood and its function?
4. What makes the human heart special?
5. How does deoxygenated blood flows into the heart?
6. What happens to the deoxygenated blood inside the heart?
7. What happens in the lungs?
8. Where will this oxygenated blood go to?
Answers & Comments
1. What are the three major components that make up the circulatory system and their respective functions?
Answer:
- Heart, a muscular organ that pumps blood throughout your body.
- Blood vessels, which include your arteries, veins and capillaries.
- Blood, made up of red and white blood cells, plasma and platelets.
2. What makes blood special?
Answer:
It is special because Blood is essential to life aside from that Differences in these antigens are what makes one person's blood different from someone else's.
3. What are the cellular components of the blood and its function?
Answer:
- Red blood cells (erythrocytes). These carry oxygen from the lungs to the rest of the body.
- White blood cells (leukocytes). These help fight infections and aid in the immune process. Types of white blood cells include: Lymphocytes.
- Platelets (thrombocytes). These help in blood clotting.
4. What makes the human heart special?
Answer:
Because the heart has its own electrical impulse, it can continue to beat even when separated from the body, as long as it has an adequate supply of oxygen.
5. How does deoxygenated blood flows into the heart?
Answer:
Deoxygenated blood from the lower half of the body enters the heart from the inferior vena cava while deoxygenated blood from the upper body is delivered to the heart via the superior vena cava.
6. What happens to the deoxygenated blood inside the heart?
Answer:
The deoxygenated blood returns from the body to the right atrium and from there enters the right ventricle that pumps it to the lungs through the main pulmonary artery (pulmonary trunk).
7. What happens in the lungs?
Answer:
In the lungs, the blood refills its oxygen supply and gets rid of carbon dioxide.
8. Where will this oxygenated blood go to?
Answer:
The oxygenated blood is brought back to the heart by the pulmonary veins which enter the left atrium. From the left atrium blood flows into the left ventricle. The left ventricle pumps the blood to the aorta which will distribute the oxygenated blood to all parts of the body.
Hope it helps!