3.
B. Short answer questions :
1.
What is the composition of blood ?
2. What is pulmonary circulation ?
Define pulse and blood pressure.
4. What is blood transfusion ?
5. Why is blood group O called the universal donor?
6. Define vein.
7. What is the difference between plasma and serum ?
8. What is a sphygmomanometer?
9. Write the importance of blood transfusion.
10. What is sinuatrial node ?
Answers
Answer:
1. Blood is a specialized body fluid. It has four main components: plasma, red blood cells, white blood cells, and platelets.
2. The pulmonary circulation is the portion of the circulatory system which carries deoxygenated blood away from the right ventricle, to the lungs, and returns oxygenated blood to the left atrium and ventricle of the heart.
3. Pulse : the regular beating in your body as blood is pushed around it by your heart. You can feel your pulse at your wrist, neck, etc.
Blood pressure : Blood pressure is the pressure of circulating blood against the walls of blood vessels
4. Blood transfusion is the process of transferring blood or blood products into one's circulation intravenously.
5. People with type O- blood are called universal donors because their donated red blood cells have no A, B or Rh antigens and can therefore be safely given to people of any blood group. So it is called universal donor.
6. A blood vessel that carries blood that is low in oxygen content from the body back to the heart. is called vein.
7. Serum : Serum is the liquid that remains after the blood has clotted.
Plasma : Plasma is the liquid that remains when clotting is prevented with the addition of an anticoagulant.
8. A sphygmomanometer is a device which is used to check blood pressure.
9. Blood carries oxygen and nutrients to all parts of your body. Blood transfusions replace blood that is lost through surgery or injury or provide it if your body is not making blood properly. We need a blood transfusion if we have anemia, sickle cell disease, a bleeding disorder such as hemophilia, or cancer.
10. The sinuatrial node is a group of cells located in the wall of the right atrium of the heart.it generates electrical impulses that set the rhythm and rate of the heart.
Explanation:
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Explanation:
Blood has four main components: plasma, red blood cells, white blood cells, and platelets. Platelets promote healing in flesh wounds, white blood cells help fight off infections, bacteria, and diseases, plasma carries water and other enzymes, and red blood cells carry nutrients and oxygen to the lungs and other major organs.
Pulmonary circulation is the portion of the circulatory system which carries blood cells that are not carrying oxygen away from the heart´s right ventricle, to the lungs, and returns blood cells carrying oxygen to the left atrium and ventricle of the heart.
Pulse pressure is the difference between your systolic blood pressure and diastolic blood pressure, and blood pressure is the pressure of circulating blood against the walls of blood vessels.
A blood transfusion is the process of transferring blood or blood products into the circulation. Transfusions are used for medical conditions to replace lost elements in the blood.
Type O-negative blood is called the "universal donor" because it is compatible with literally any blood type.
A vein is any tube forming part of the blood circulation system of the body, propelling oxygen-depleted blood towards the heart.
Serum and plasma both come from the liquid portion of the blood that remains once the cells are removed. However, serum is the liquid that remains after the blood has clotted, and Plasma is the liquid that remains when clotting is prevented.
A sphygmomanometer is a tool for measuring blood pressure, typically consisting of an inflatable rubber cuff which is applied to the arm.
Blood carries oxygen and nutrients to all parts of the body. Blood transfusions replace blood that is lost through surgery or injury or provided if the body is not making blood properly.
The Sinoatrial node is a cluster of myocytes. Under normal circumstances, it generates electrical pulses that set the rhythm and rate of the heart.
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