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Body Fluids And Circulation Mcq
Quiz 12
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Q.1
Circulatory system does not help in .... ... [ WB 2012 ]
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a) Transport of gases
0%
b) Transport of nutrients
0%
c) Transport of hormones
0%
d) Passage of impulses
Explanation
A nerve impulse is an electrical signal that travels along an axon of nerve cells Answer : (d)
Q.2
A mismatch during transfer of blood causes ... .... [ Pb PMT 2003 ]
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a) Agglutination
0%
b) Erythroblastosis
0%
c) Haemopoiesis
0%
d) None of the above
Explanation
A mismatch during transfer of blood causes Agglutination Agglutination is the process that occurs if an antigen is mixed with its corresponding antibody Answer : (a)
Q.3
Lymph ... ... [ CBSE 1995 ]
0%
a) Transports O2 to brain
0%
b) Transports CO2 to lungs
0%
c) Returns interstitial fluid to blood
0%
d) Returns RBCs and WBCs to lymph nodes
Explanation
It is responsible for the removal of interstitial fluid from tissues. It absorbs and transports fatty acids and fats as chyle from the digestive system. It transports white blood cells to and from thelymph nodes into the bones. Answer : (c)
Q.4
The disease erythroblastosis foetalis of human baby is due to .. .. [ CBSE 2000 ]
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a) Incompatibility of blood groups of the couple
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b) Incompatibility of blood group of embryo and mother
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c) Maladjustment of Rh factor
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d) All the above
Explanation
Erythroblastosisfoetalis: refers to two potentially disabling or fatal blood disorders in infants: Rh incompatibility disease and ABO incompatibility disease. Answer : (c)
Q.5
Lymph nodes from ... ... [ MPPMT 1999 ]
0%
a) Hormones
0%
b) Lymph
0%
c) Antigens
0%
d) Anti-bodies
Explanation
Lymph nodes are major sites of B and T lymphocytes, and other white blood cells. Lymph nodes are important for the proper functioning of the immune system, acting as filters for foreign particles and cancer cells. Lymph nodes do not have a detoxification function, which is primarily dealt with by the liver and kidneys. Answer : (d)
Q.6
Artificial pacemaker is implanted subcutaneously for correcting ... ... [AIIMS 2004 ]
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a) 90% blockage of coronary arteries
0%
b) High blood pressure
0%
c) Arteriosclerosis
0%
d) Irregularity of heart rhythm
Explanation
Artificial pacemaker is a medical device which uses electrical impulses, delivered by electrodes contracting the heart muscles, to regulate the beating of the heart. Answer : (d)
Q.7
Although blood carries a lot of CO2, it does not become acidic due to .. .. [ Pb. PMT 2005 ]
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a) CO2 combines with water to form H2CO3 which nutralises by Na2CO3
0%
b) In CO2 transport blood buffers play an important part
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c) CO2 is absorbed by leucocytes
0%
d) CO2 continuously diffuses through tissues and does not accumulate.
Explanation
Carbon dioxide is transported in the blood from the tissue to the lungs in three ways: (i) dissolved in solution; (ii) buffered with water as carbonic acid; (iii) bound to proteins, particularly haemoglobin. Approximately 75% of carbon dioxide is transport in the red blood cell and 25% in the plasma Answer : (b)
Q.8
Louder sound of heart beat occurs during closure of ... ... [ Guj CET 2006 ]
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a) Tricuspid valve
0%
b) Auriculo-ventricular valves
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c) Mitral valve
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d) Semilunar valve
Explanation
first heart sound ‘lub’ (S1) produced by the closing of the atrioventricular valves The first heart sound (lub) can be heard the loudest second heart sound ‘dub’ (S2), produced by the closing of the semilunar valves, Answer : (b)
Q.9
If liver is removed, the component that increases in blood ... .. [ Har. PMT 2005 ]
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a) Protein
0%
b) Urea
0%
c) Uric acid
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d) Ammonia
Explanation
In liver Ammonia is converted to Urea Answer : (d)
Q.10
Which one indicates hypertension ... ... [ MHCET 2007]
0%
a) 140/100
0%
b) 120/85
0%
c) 110/70
0%
d) 90/60
Explanation
Answer : (a)
Q.11
Cardiac impulse that accomplishes heart beat is delayed at ... ... [ WB 2007 ]
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a) Internodal tracts
0%
b) AV node
0%
c) Bundle of His
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d) Purkinje fibres
Explanation
Pathway of myogenic impulse conduction is SA Node → AV Node → Bundle of His → Purkinje fibres The AV node serves as an electrical relay station, slowing the electrical current sent by thesinoatrial (SA) node before the signal is permitted to pass down through to the ventricles. Answer : (b)
Q.12
Iron is attached to globin part of haemoglobin by ... ... [AFMC 1990 ]
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a) Coordinate bond
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b) Ionic bond
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c) Covalent bond
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d) Hydrogen bond
Explanation
Fe is in coordinate bond with nitrogen Answer : (a)
Q.13
The genotype of B-group father of and mother O-group then child is ... ... [ CBSE 1992 ]
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a) IOIo
0%
b) IBIB
0%
c) IAIB
0%
d) IBIO
Explanation
Phenotype (Blood group)
Genotype
Type A
I
A
I
A
or I
A
i
Type B
I
B
I
B
or I
B
i
Type AB
I
A
I
B
Type O
i i
Parent Father (B) IBIB or IB i Mother (O) i i Gametes IB , i i Progeny IB I or ii Answer : (d)
Q.14
Even during vigorous exercise, the blood supply does not increase in case of .. .. [ BHU 1990 ]
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a) Heart
0%
b) Brain
0%
c) Kidney
0%
d) Skin
Explanation
Answer : (b)
Q.15
Mitochondria are absent in ... ... [ Bih PMT 1994 ]
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a) WBC
0%
b) Cartilage
0%
c) RBC
0%
d) All the above
Explanation
Answer : (c)
Q.16
Pericardial fluid is secreted by ... ... [ HPPMT 1995 ]
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a) Myocardium
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b) Parietal peritoneum
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c) Visceral peritoneum
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d) None of the above
Explanation
Pericardial fluid is the serous fluid secreted by the serous layer of the pericardium into the pericardial cavity. The serous pericardium, in turn, is divided into two layers, the parietal pericardium, which is fused to and inseparable from the fibrous pericardium, and the visceral pericardium. Answer : (c)
Q.17
In circulatory system, valves occur in ... ... [ CBSE 1995 ]
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a) Heart and blood vessels of both vertebrates and invertebrates as well as vertebrate lymphatic
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b) Both vertebrate and invertebrate hearts
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c) Vertebrate heart only
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d) Both vertebrate and invertebrate hearts and their blood vessels
Explanation
Answer : (a)
Q.18
All veins have deoxygenated blood except ... ... [ AIIMS 2001 ]
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a) renal artery
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b) hepatic vein
0%
c) hepatic portal vein
0%
d) pulmonary veins
Explanation
Answer : (d)
Q.19
Which is blood of genotypes IBIB and IBIO [ MPPMT 1991 ]
0%
a) O
0%
b) A
0%
c) B
0%
d) AB
Explanation
Parent
I
B
I
B
I
B
I
O
Gametes
I
B
I
B
and I
o
Progeny
I
B
I
B
or I
B
I
O
( group B)
Answer : (c)
Q.20
Enteroheptic circulation is related to ... ... [ AMU 2002 ]
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a) Bile ducts
0%
b) Bile pigment
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c) Cholesterol
0%
d) Cholecystokinin
Explanation
Enterohepatic circulation: refers to the circulation of biliary acids, bilirubin, drugs, or other substances from the liver to the bile. Cholecystokinin: a hormone which is secreted by cells in the duodenum and stimulates the release of bile into the intestine and the secretion of enzymes by the pancreas. Answer : (d)
Q.21
Purkinje fibres arise from .. ... [ DPMT 2002 ]
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a) Apex of ventricles
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b) Middle of ventricles
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c) Anterior part of auricles
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d) Posterior part of auricles
Explanation
Answer : (b)
Q.22
At the time of diastole, heart is filled with ... ... [ BHU 2003]
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a) Mixed blood
0%
b) Venous blood
0%
c) Deoxygenated blood
0%
d) Oxygenated blood
Explanation
Diastole is the part of the cardiac cycle when the heart refills with blood A shown in figure during diastole heart is filled with Venous blood and Arterial blood Blood that has passed through the capillaries of various tissues other than the lungs, is found in the veins, in the right chambers of the heart, and in pulmonary arteries, and is usually dark red as a result of a lower content of oxygen. Answer : (b)
Q.23
Choose the correct blood supply ... .... [ kerala 2004 ]
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a) 10% heart, 10% brain, 10% liver, 40% kidney, 15% bones, 15% other
0%
b) 5% heart, 20% brain, 20% liver, 15% kidney, 5% bones, 4% other
0%
c) 5% heart, 25% brain, 25% liver, 25% kidney, 5% bones, 15% other
0%
d) 20% heart, 10% brain, 10% liver, 25% kidney, 10% bones, 25% other
Explanation
Brain requires maximum blood supply Answer : (c)
Q.24
pH of blood in arteries and veins is ... ... [ AFMC 1996 ]
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a) Higher in arteries and lower in veins
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b) Higher in veins and lower in arteries
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c) Same
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d) Variable in both
Explanation
Blood in the veins are basically carrying waste material waste material is carbon dioxide, when carbon dioxide moves from the cell to the blood, part of it is stored as carbonic acid, which leads to the blood in veins having a lower pH, Answer : (a)
Q.25
Splenic artery arises from ... .... [ CBSE 1990 ]
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a) Anterior mesenteric artery
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b) Coeliac artery
0%
c) Posterior mesenteric artery
0%
d) Intestinal artery
Explanation
Splenic artery: splenic artery (in the past called the lienal artery) is the blood vessel that supplies oxygenated blood to the spleen. It branches from the celiac artery, and follows a course superior to the pancreas. The celiac artery, also known as the celiac trunk, or truncuscoeliacus, is the first major branch of the abdominal aorta Answer : (b)
Q.26
For analysis, the blood drawn from a patient will not be placed in a tube having ... ...[ CBSE 2004 ]
0%
a) Sodium oxalate
0%
b) Heparin
0%
c) Calcium bicarbonate
0%
d) Been chilled
Explanation
Some clotting enzymes in the blood (factors II, VII, IX, and X) require calcium ion (Ca++) to work enzymatically. In fact, all blood in blood banks is treated with citrate which binds all the free calcium, keeping the blood fluid and unclotted for months Answer : (c)
Q.27
Which one is not a blood group ... .. [ KCET 2004 ]
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a) ABO and Rh
0%
b) Rh and MN
0%
c) Buffs and Kips
0%
d) Lewis and Duffy
Explanation
The MN blood system :The possible phenotypical forms are three blood types: type M blood, type N blood and type MN blood. Lewis and Duffy :There are two main types of Lewis antigens, Lewis a (Le-a) and Lewis b (Le-b). There are three common phenotypes: Le(a+b-), Le(a-b+), and Le(a-b-) Answer : (c)
Q.28
Mitral valve is also called ... ... [ JIPMER 2004 ]
0%
a) Tricuspid valve
0%
b) Semilunar valve
0%
c) Bicuspid valve
0%
d) None of the above
Explanation
Mitral valve lies between the left atrium and the left ventricle. Also called as Bicuspid valve Answer : (c)
Q.29
English physician who discovered blood circulation was ... ... [CPMT 1997 ]
0%
a) J.C. Bose
0%
b) A. Vesalius
0%
c) William Harvey
0%
d) H.G.Khurana
Explanation
Answer : (c)
Q.30
' Heart of heart' is ... .... [ BHU 2005]
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a) SA node
0%
b) AV node
0%
c) Bundle of His
0%
d) Purkinje fibres
Explanation
This electrical signal begins in the sinoatrial (SA) node, located at the top of the heart's upper-right chamber (the right atrium). The SA node is sometimes called the heart's "natural pacemaker." May be called as ‘Heart of Heart’ Answer : (a)
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