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| Blood circulation |
1) Which embryonic germ layer forms the blood?
Answer: Mesoderm
2) What is also known as a fluid connective tissue?
Answer: Blood
3) Which mineral is associated with blood coagulation?
Answer: Calcium
4) What is the normal lifespan of white blood cells?
Answer: 13 to 20 days
5) What is the normal lifespan of red blood cells?
Answer: 120 days
6) Which white blood cell secretes
heparin?
Answer: Basophils
7) Which white blood cells perform phagocytosis?
Answer: Neutrophil and Monocyte
8) Which white blood cells produce antibodies?
Answer: Lymphocytes
9) Which WBC protects us from
allergies?
Answer: Eosinophils
10) Which is the largest lymphatic organ of the body?
Answer: Spleen
11) What is chromoprotein?
Answer: Any protein, such as haemoglobin, that has a metal-containing pigmented group such as haem.
12) Which protein is present in haemoglobin?
Answer: Globin
13) What is the normal haemoglobin content of an
adult man?
Answer: 14.5 gm/dL
14) Which veins carry oxygenated blood?
Answer: Pulmonary vein
15) Which chamber of the heart is connected with the pulmonary artery?
Answer: Right ventricle
16) Which artery carries deoxygenated blood?
Answer: Pulmonary Artery
17) Where are the semilunar valves located?
Answer: The semilunar valves are located between the ventricles and outflow vessels.
18) Where are the aortic valves located?
Answer: Located between the left ventricle and the aorta.
19) How many layers does the pericardium have?
Answer: two layers, 1) visceral layer & 2) parietal layer.
20) How many layers does an artery have?
Answer: Three layers, 1) tunica intima 2) tunica media and 3) tunica adventitia.
21) What kind of layers do capillaries have?
Answer: Endothelium layer
22) The wall of the heart consists of how many layers?
Answer: Three, these are Epicardium, Myocardium, Endocardium.
23) What is the outermost layer of the heart?
Answer: Epicardium
24) What is the innermost layer of the heart?
Answer: Endocardium
25) What is another name for the natural pacemaker of the heart?
Answer: SA node or sinoatrial node
26) what is the medical term for heart attack?
Answer: Myocardial Infarction
27) What is leukaemia?
Answer: Leukaemia is a blood cancer that usually begins in the bone marrow and results in high numbers of abnormal white blood cells.
28) What is purpura?
Answer: A rare and serious condition in which blood cells called platelets are reduced, a purple rash develops, and blood clots block blood vessels throughout the body.
29) Which vitamin is also called the anti-haemorrhagic vitamin?
Answer: Vitamin K
30) Which blood group is known as a universal donor?
Answer: 'O' group
31) Which blood group is known as a universal recipient?
Answer: 'AB' group
32) Which blood group does not contain any antigens?
Answer: 'O' group
33) Which blood group does not contain any antibodies?
Answer: 'AB' group
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