Blood pressure is defined as the force with which blood
Important Questions on Body Fluids and Circulation
The given figure shows an angiogram of the coronary blood vessel. Which one of the following statements correctly describes, what is being done?
Match column I with column II and select the correct option from the codes given below.
| Column I | Column II |
| A. Heart failure | (i) Heart muscle is suddenly damaged by an inadequate blood supply |
| B. Cardiac arrest | (ii) Chest pain due to inadequate O2 reaching the heart muscles |
| C. Heart attack | (iii) Atherosclerosis |
| D. Coronary artery disease (CAD) | (iv) Heart not pumping blood effectively enough to meet the needs of the body |
| E. Angina pectoris | (v) Heart stops beating |
Given below are four statements (i-iv) regarding the human blood circulatory system.
(i) Arteries are thick-walled and have narrow lumen as compared to veins.
(ii) Angina is acute chest pain when the blood circulation to the brain is reduced.
(iii) Persons with blood group AB can donate blood to any person with any blood group under system.
(iv) Calcium ions play a very important role in blood clotting.
Which two of the above statements are correct?
Refer to the given electrocardiogram and select the correct statement.
