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Quiz 11
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Q.1
If blood pressure reads 140 systole and 90 diastole, the condition is called ... ... [ HPPMT 2012 ]
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a) Hypertension
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b) Normal
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c) Hypotension
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d) Ischemia
Explanation
Correct answer is hypertension Answer : (a)
Q.2
What is correct regarding blood pressure ... .... [ CBSE 2011 ]
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a) 105/50 mm Hg makes one very active
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b) 100/55 mmHg is considered an ideal blood pressure
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c) 190/110 mm Hg may harm vital organs like brain nad kidneys
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d) 130/90 mmHg is considered as high and requires treatment.
Explanation
Hypertension stage 3. Blood pressure is 190/110 mmHg may cause Bleeding into the brain (stroke), Heart failure. Chest pain (unstable angina), Fluid in the lungs (pulmonary edema) Heart attack, Aneurysm (aortic dissection). Answer : (c)
Q.3
In a healthy adult man, the diastolic pressure is ... ... [ RPMT2011 ]
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a) 80 mmHg
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b) 90 mmHg
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c) 100 mmHg
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d) 120 mmHg
Explanation
Normal systolic pressure(upper number) is 90-120 and diastolic pressure is 60-80 Lower number Answer : (a)
Q.4
Amount of blood pumped by heart into body per minute is ... ... [ MHTCET 2008 ]
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a) Atrial output
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b) Ventricular output
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c) Cardiac output
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d) Stroke volume
Explanation
The amount of blood put out by the left ventricle of the heart in one contraction is called the stroke volume. The stroke volume and the heart rate determine the cardiac output. Answer : (c)
Q.5
In case of emergency ( e.g. serious accident with great blood loss) which blood group could be safely transfused .... [ CBSE 20 11]
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a) AB Rh-
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b) O Rh+
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c) AB Rh+
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d) O Rh-
Explanation
Type
You can give blood to
You can receive blood from
A+
A+; AB+
A+; A-; O+; O-
O+
O+; A+; B+; AB+
O+, O-
B+
B+; AB+
B+; B-; O+; O-
AB+
AB+
Every one
A-
A+; A-, AB+; AB-
A-, O-
O-
Every one
O-
B-
B+, B-, AB+. AB-
B-, O-
AB-
AB+, AB-
AB-; A-; B-; O-
Answer : (d)
Q.6
Systolic pressure is 120 mmHg. Diastolic pressure is 80 mmHg. Pulse pressure is ... ... [ KCET 2010 ]
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a) 120 ×80 = 9600 mmHg
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b) 120 + 80 = 200 mmHg
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c) 120 - 80 = 40 mmHg
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d) 120/80 = 1.5 mmHg
Explanation
Pulse pressure is the difference between the systolic and diastolic pressure readings. It is measured in millimeters of mercury (mmHg). It represents the force that the heart generates each time it contracts. Now resting blood pressure is 120/80 mm Hg, pulse pressure is 40 mmHg. Answer : (c) Answer : (c)
Q.7
Which one takes part in blood clotting ... ... [ AFMC 2010 ]
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a) RBC
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b) WBC
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c) Thrombocytes
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d) Lymphocytes
Explanation
Thrombocytes are small blood components produced in the bone marrow with a key role in blood clotting. The main function of thrombocytes is to stop bleeding from injured blood vessels Answer : (c)
Q.8
Given below are four statements, a - d, regarding human blood circulatory system (a) Arteries are thick-walled and have narrow lumen as compared to veins (b) Angina is acute chest pain when the blood circulation to brain is reduced. (c) Persons with blood group AB can donate blood to any person with any blood group under ABO system (d) Calcium ions play a very important role in blood clotting ... ... [ CBSE 2010 ]
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a and b
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b) a and d
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c) b and c
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d) c and d
Explanation
Statement (b) is wrong as Angina is chest pain or discomfort when there is not enough blood flow to heart muscle. Statement (c) is wrong Person with blood group AB can donate blood to other person having blood group AB Answer : (b)
Q.9
Collecting of WBCs at the site of injury occurs due to ... .... [ Pb PMT 2000 ]
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a) Phagocytosis
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b) Hemolysis
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c) Diapedesis
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d) All the above
Explanation
Phagocytosis, process by which certain living cells called phagocytes ingest or engulf other cells or particles. Hemolysis: The destruction of red blood cells which leads to the release of hemoglobin from within the red blood cells into the blood plasma Diapedesis is the movement or passage of white blood cells, through intact capillary walls into surrounding body tissue. Answer : (c)
Q.10
Hepatic portal system starts from ... ... [ Pb. PMT 2000 ]
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a) Digestive system to liver
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b) Kidney to liver
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c) Liver to heart
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d) Liver to kidney
Explanation
Serum is the component that is neither a blood cell nor a clotting factor; it is the blood plasma not including the fibrinogens. Serum includes all proteins not used in blood clotting and all the electrolytes, antibodies, antigens. Thus not all component of blood except RBC and some protein Answer : (a)
Q.11
Lymph consists of ... ... [ CBSE 2002 ]
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a) RBCs, WBCs and plasma
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b) RBCs, proteins and platelets
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c) All components of blood except RBCs and some proteins
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d) WBCs and serum
Explanation
Hepatic portal system
Renal portal system
Origin
Different parts of the digestive system such as stomach, intestine, pancreas, spleen etc. and veins come from hind limb are united together and enters into liver and breaks into capillaries instead open to heart
The femoral and sciatic vein united together to form renal portal vein this vein open into kidney and breaks into capillaries
Destination
Liver
Kidney
Function
Absorbed food of alimentary canal and transport into liver. This food is differentiated into liver and sends them to the place of necessary and store the excess food
By the system filtration of metabolic waste and excretion of these materials of the blood by the kidney is done
Significance
The absorbed food is stored into liver not circulated meaning lastly into the body and food is distributed when in need
To separate the waste materials from the blood before entering the heart while brings into the kidney to filter and purify
Answer : (d)
Q.12
Function of vertebral arteries is to supply ... ... [ EAMCET 1995 ]
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a) Deoxygenated blood to kidneys
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b) Deoxygenated blood to liver
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c) Oxygenated blood to limbs
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d) Oxygenated blood to cerebellum
Explanation
The brain receives oxygenated blood from two sources: the internal carotid arteries, and the vertebral arteries Answer : (d)
Q.13
In ECG, P-wave refers to ... ... [ HPPMT 2012 ]
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a) End of atrial contraction
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b) Beginning of atrial contraction/depolarisation
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c) Beginning of ventricular contraction
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d) None of the above
Explanation
P-wave refers to Atrial contraction Answer : (b)
Q.14
Blood capillaries are made of ..... [ CBSE 1993 ]
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a) Endothelium, connective tissue and muscle fibres
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b) Endothelium and muscle fibres
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c) Endothelium and connective tissue
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d) Endothelium only
Explanation
Arteries and veins are made up of: endothelium(epithelial tissue), connective tissue( tunica media), and nervous tissue( vasa vasorum). In arteries there is more tunica media so that its lumen is narrower than that of veins. Capillaries are simply made of endothelium Answer : (d)
Q.15
Plasma proteins perform ... ... [ MPPMT 2004 ]
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a) Nutritive function
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b) Physicochemical function
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c) Transport function
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d) All the above
Explanation
Functions of Plasma Proteins: a)Protein Nutrition b) Physicochemical function such asOsmotic Pressure and water balance, Blood Coagulation c) Transport of Lipids and metals Answer : (d)
Q.16
Closed blood vascular system occurs in ... ... [Manipal 1999 ]
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a) Earthworm
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b) Housefly
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c) Cockroach
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d) Euglena
Explanation
Answer : (a)
Q.17
Second heart sound is associated with the ... ... [ MPPMT 2011 ]
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a) Lub - closure of semilunar valves
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b) Lub - closure of tricuspid and bicuspid valves
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c) Dupp - closure of tricuspid and bicuspid valves
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d) Dupp - closure of aortic and pulmonic valves
Explanation
The second sound,” dub” or S2, is caused by the closure of aortic and pulmonic valves, marking the end of systole. Answer : (d)
Q.18
value of cardiac output is ... ... [ kerala 2000 ]
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a) Auricular volume × ventricular volume
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b) Stroke volume × Rate of heart beat
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c) Blood pumped in one minute
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d) Both B and C
Explanation
Answer : (d)
Q.19
The value of diastolic blood pressure is .. .... [ KCET 2001]
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a) 120 mmHg
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b) 80 mmHg
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c) 120/80 mmHg
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d) 40 mmHg
Explanation
Answer : (b)
Q.20
Impulse originating from SA node is transmitted to ... ... [ JIPMER 2002 ]
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a) Pacemaker
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b) AV node
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c) Bundle of HIS
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d) Purkinje system
Explanation
Answer : (b)
Q.21
Sympathetic nervous system ... ... [ CPMT 1994 ]
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a) Decreases heart beat
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b) Increases heart beat
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c) Not related to heart beat
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d) Controls heart beat
Explanation
Answer : (b)
Q.22
High carboxyhaemoglobin content indicates that the patient has inhaled excessive ... ... [ CBSE 2004]
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a) Carbon disulfide
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b) Chloroform
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c) Carbon dioxide
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d) Carbon monoxide
Explanation
Answer : (d)
Q.23
Which one produces antibodies? ... ... [ CET Chd. 2010 ]
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a) Macrophages
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b) Plasma cells / Lymphocytes
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c) mast cells
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d) Fibroblasts
Explanation
An antibody (Ab), also known as an immunoglobulin (Ig), is a large, Y-shaped protein produced mainly by plasma cells. B lymphocytes (or B cells) are each programmed to make one specific antibody Answer : (b)
Q.24
Increase in count of RBC is ... ... [ JIPMER 2004]
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a) Polycythemia
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b) Leucocytopenia
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c) Anaemia
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d) Leucopenia
Explanation
Polycythemia :an abnormally increased concentration of haemoglobin in the blood, either through reduction of plasma volume or increase in red cell numbers. Leukocytopenia : Any situation in which the total number of leukocytes in the circulating blood is less than normal, the lower limit of which is generally regarded as 4000-5000/mm3. Leucopenia: is a decrease in the number of white blood cells found in the blood.The normal total white cell count is 5000-10000 per cubic millimeter Anemia: happens when the number of healthy red blood cells in your body is too low. Answer : (a)
Q.25
In leucopenia ... .... [ Odisha 2005 ]
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a) Leucocytes increase above 6000
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b) Leucocytes decrease below 5000
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c) Bone marrow is destroyed
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d) Total number of lymphocytes decrease from 2% to 0.5%
Explanation
Leucopenia: is a decrease in the number of white blood cells found in the blood. The normal total white cell count is 5000-10000 per cubic millimeter Answer : (b)
Q.26
Human / mammalian/elephant heart is .... ... [ CPMT2002 ]
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a) Myogenic
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b) Neurogenic
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c) Cardiogenic
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d) Digenic
Explanation
Myogenic: is the term used for muscles or tissues that can contract on their own, without any external electrical stimulus Neurogenic: forming nervous tissue, or stimulating nervous energy. Since the muscles of the human heart are stimulated to contract by nerve impulses generated by the Sino Atrial(SA) node. It is a cluster of cells which are part of the heart muscle. Hence the human heart is myogenic Answer : (a)
Q.27
Which one is odd combination ... ...
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a) Peyer's patches - Lymphatic gland
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b) Leydig cells - Testis
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c) HCl - Oxyntic cells
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d) Blood capillary wall - Connective tissue
Explanation
Answer : (d)
Q.28
Bundle of His passes stimulus of concentration to .... ... [ Guj CET 2008 ]
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a) AV node
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b) SA node
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c) Purkinje fibres
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d) Atrium
Explanation
Answer : (c)
Q.29
What is correct about ECG? .... ... [ CBSE 2009 ]
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a) P-depolarisation of atria
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b) R-Repolarisation of ventricles
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c) T-start of systole
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d) T-end of diastole
Explanation
Electrical activity
Graphic Depiction
Associated pattern
Atrial Depolarization
P wave
Delay at AV node
PR Segment
Ventricular depolarization
QRS Complex
Ventricular Repolarization
T- wave
No electric activity
Isoelectric Line
Answer : (a)
Q.30
Circulatory system is absent in .... ... [ CET Chd. 2010 ]
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a) Annelids
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b) Arthropods
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c) Flatworms
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d) Cephalopods
Explanation
Anelidshave closed circulatory systems, where the blood makes its entire circuit via blood vessels Arthropods have what is referred to as an open circulatory system, where blood fills the body cavity of the animal Flatworms do not have a circulatory system in the usual sense. There is no need for a special circulatory system as a human has because the flatworm doesn't breathe with lungs and doesn't need to transport oxygen around its body. The flatworm simply diffuses oxygen via its skin.T he creatures of the Platyhelminthes phylumdo not contain a body cavity nor a circulatory system. Cephalopods are the only mollusks with a closedcirculatory system Answer : (c)
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