Biology Practice: Circulatory System (Mock Test 5 - Ultimate Comprehensive)
1. The double-layered protective sac that encloses the heart and contains a lubricating fluid is the:
2. Which of the following is the correct path of blood during Pulmonary Circulation?
3. 'Leukocytes' that are capable of producing antibodies to neutralize toxins are:
4. The condition 'Haemophilia' is often called 'Bleeder's Disease' because the blood lacks:
5. Which heart chamber has the thickest muscular wall to pump blood to the farthest points of the body?
6. The 'Pacemaker' of the heart is located in the wall of the:
7. 'Sphygmomanometer' is an instrument used specifically to measure:
8. In a healthy adult, the average number of heartbeats per minute is:
9. Which blood group is known as the 'Universal Donor'?
10. The biological term for the 'squeezing' of WBCs through the capillary walls is:
11. The 'LUBB' sound of the heart occurs due to the closure of:
12. Blood from the digestive tract is first carried to the liver by the:
13. 'Anaemia' is a condition typically caused by the deficiency of ________ in the diet.
14. Which blood vessel carries deoxygenated blood from the upper body to the right atrium?
15. The 'Rh-factor' is an ________ found on the surface of RBCs in most humans.
16. 'Systole' is the phase of the cardiac cycle when the heart muscles ________.
17. Tissue fluid that enters the lymphatic capillaries is known as:
18. The valve present between the Left Atrium and the Left Ventricle is the:
19. 'Leukemia' is a clinical condition characterized by an abnormal increase in the number of:
20. Which of the following carries oxygenated blood to the heart muscles themselves?