Saturday, June 22, 2013

Circulatory System Mcq's class 10

Q 1. In a healthy adult man the normal diastolic pressure is
A
80 mm Hg
B
90 mm Hg
C
100 mm Hg
D
120 mm Hg




Q2.In which of the following disorders, blood has a defective hemoglobin?
A
Hematoma
B
Hematuria
C
Hemophilia
D
Sickle cell anemia
Q3. The valves which allow blood to flow from the ventricles into the arteries and not in the opposite direction are
A
Semilunar valve and tricuspid valve
B
Bicuspid and tricuspid valve
C
A.V valve (Atrioventricular valve) and semilunar valve
D
Aortic valve and mitral valve
Q4. Which of the following matches correctly?
A
Pulmonary artery - Carries deoxygenated blood to the lungs
B
Superior vena cava - Receives deoxygenated blood from the lower body and organs
C
Inferior vena cava - Receives deoxygenated blood from the head and body
D
Hepatic artery - Carries deoxygenated blood to the gut




Q5. Which of the following sequences is truly a systemic circulation pathway?
A
Right ventricle → pulmonary aorta → tissues → pulmonary veins → left auricle
B
Left auricle → left ventricle → aorta → arteries → tissues → veins → right atrium
C
Left auricle → left ventricle → pulmonary aorta → tissues → right auricle
D
Right auricle → left ventricle → aorta → tissues → veins → right auricle


Q6. Which one is correct?
A
Blood = Plasma + RBC + WBC + Blood platelets
B
Lymph = Plasma + RBC + WBC
C
Neuron = Cyton + Dendrite + Axon + Synapse
D
Plasma = Blood - lymphocytes
Q7. Which one of the following sentences is wrong?
A
Small arteries are called arterioles.
B
When arterioles reach the capillaries blood pressure drops.
C
Blood pressure is lower in the arteries than in the arterioles.
D
Small arterioles regulate the flow of blood into each capillary.




Q8. Serum is
A
Blood without corpuscles and fibrinogen
B
Lymph without corpuscles
C
Blood without fibrinogen
D
Lymph




Q9. When body tissues are injured resulting in the loss of blood, the process of blood clot begins and the blood platelets release
A
Fibrinogen
B
Thrombin
C
Prothrombin
D
Thromboplastin


Q10. Which chamber of the human heart has the thickest muscular wall?
A
Right ventricle
B
Left auricle
C
Left ventricle
D
Right auricle
A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor?
A
Blood group A
B
Blood group B
C
Blood group O
D
Blood group AB




Q10. Atrioventricular valves are supported by strands of connective tissue called ______.
A
endocardium
B
myocardium
C
chordae tendineae
D
cardiac fibers




Q11. Which one of the followings refers to blood cancer characterized by uncontrolled proliferation of abnormal/immature white blood cells in the bone marrow?
A
Hypertension
B
Atherosclerosis
C
Leukemia
D
Pulmonary embolism




Q12. Hardening of the arteries due to deposition of cholesterol is called
A
Rhinitis
B
Atherosclerosis
C
Thrombosis
D
Stenosis




Q13. The kind of epithelium which forms the inner walls of blood vessels is
A
Squamous epithelium
B
Cuboidal epithelium
C
Columnar epithelium
D
Ciliated columnar epithelium


Q14. Heparin is
A
Anti-allergic
B
Blood diluter
C
Anticoagulant
D
Antiseptic




Q15. In developing embryo RBCs are formed in
A
Lymph node
B
Bone marrow
C
Liver
D
Spleen


16. Oxygenated blood occurs in
A
Pulmonary artery
B
Right atrium
C
Right ventricle
D
Pulmonary vein




Q17. Both erythrocytes and leucocytes are formed in
A
Lymph nodes
B
Bone marrow
C
Thymus
D
Arterial walls




Q18. Brain completely depends on blood from the supply of
A
Oxygen and glucose
B
Oxygen and ATP
C
Oxygen and electrolytes
D
Glucose and ATP
Q19. Major part of the plasma consists of
A
Organic substances
B
Inorganic substances
C
Blood cells
D
Water




Q20. Compared to blood our lymph has
A
More RBCs and less WBCs
B
No plasma
C
Plasma without proteins
D
More WBCs and no RBCs


Q21. Diastole occurs due to
A
Nerve impulse from vagus
B
Elastic recoil of arteries
C
Relaxation of heart muscles
D
All of them




Q 22. During diastole
A
Blood leaves ventricle
B
Blood leaves heart
C
Blood enters in heart
D
Blood enters lungs




Q23. Globulins contained in human blood plasma are primarily involved in
A
Clotting of blood
B
Defence mechanisms of body
C
Osmotic balance of body fluids
D
Oxygen transport in the blood




Q24. All arteries carry oxygenated blood, except
A
Pulmonary artery
B
Renal artery
C
Hepatic artery
D
Cardiac artery


Q25. An adult human has systolic and diastolic pressures as:
A
80 mm Hg and 120 mm Hg
B
120 mm Hg and 80 mm Hg
C
50 mm Hg and 80 mm Hg
D
80 mm Hg and 80 mm Hg




Q26In sun our face becomes reddish due to
A
Breakup of RBC and release of haemoglobin
B
Expansion of blood capillaries
C
Effect of light
D
Irritation of skin

1 comment:


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