Biology Practice: Circulatory System (Mock Test 4 - Expert Experimental & Clinical Logic)
1. In an experiment, a sample of blood is centrifuged. The clear yellowish fluid at the top is observed. What is the clinical difference between this fluid being 'Plasma' or 'Serum'?
2. A person living at a very high altitude (e.g., Leh-Ladakh) for months is found to have a higher RBC count than a person in the plains. This is a clinical adaptation to:
3. Why is the 'Hepatic Portal Vein' unique in an experimental dissection compared to other veins?
4. A patient's blood report shows a 'WBC count of 45,000 per mm³'. This clinical condition is known as:
5. If a blood vessel is observed to have 'Valves' and 'Thin Walls', it must be functionally carrying blood:
6. During a 'Treadmill Test', a person's pulse rate increases. Expertly, this happens to:
7. A clinician uses a stethoscope to hear the 'Dup' sound. If this sound is muffled, which anatomical structure might be malfunctioning?
8. In a 'Blood Clotting' experiment, if Vitamin K is absent, the synthesis of which factor in the liver is hindered?
9. What is the clinical significance of 'Angina Pectoris'?
10. If an 'Rh-negative' person receives 'Rh-positive' blood for the first time, what is the immediate clinical risk?
11. A cross-section of a vessel shows a 'Very thick muscular wall and narrow lumen'. This vessel functionally:
12. Why is 'Double Circulation' essential for homeothermic (warm-blooded) animals like humans?
13. In a 'Heart Attack' (Myocardial Infarction), the damage is caused by the blockage of:
14. What happens to the 'Cardiac Output' if the heart rate increases significantly but the stroke volume decreases?
15. A 'Spleenectomy' (removal of spleen) would most likely affect which clinical process?
16. The 'Portal Vein' differs from a normal vein because it always:
17. Which clinical observation is typical of 'Hypertension' (High Blood Pressure)?
18. Why is 'Lymph' considered a filtrate of blood but lacks RBCs?
19. If 'Atrial Systole' is skipped, the ventricles would still fill to about 70%. What does this imply?
20. 'Erythroblastosis Fetalis' is an expert clinical example of incompatibility in:
