MCQs (Multiple Choice Questions) on NEET Body Fluids and Circulation / Cardiovascular System / Circulatory System | Question Paper no. 04
Circulation of Body Fluids: Quiz - 4
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Question 1 |
Atrioventricular valves are supported by strands of connective tissue called ______.
endocardium | |
myocardium | |
chordae tendineae | |
cardiac fibers |
Question 2 |
Which one of the followings refers to blood cancer characterized by uncontrolled proliferation of abnormal/immature white blood cells in the bone marrow?
Hypertension | |
Atherosclerosis | |
Leukemia | |
Pulmonary embolism |
Question 3 |
Consider the following statements about biomedical technologies:
(a) During open heart surgery blood is circulated in the heart-lung machine
(b) Blockage in coronary arteries is removed by angiography
(c) Computerised Axial Tomography (CAT) shows detailed internal structure as seen in a section of body(d) X-ray provides clear and detailed images of organs like prostate glands and lungs
Which two of the above statements are correct?
(a) and (b) | |
(b) and (d) | |
(c) and (d) | |
(a) and (c) |
Question 4 |
Given below is the ECG of a normal human. Which one of its components is correctly interpreted below?
Peak P and Peak R together – systolic and diastolic blood pressures | |
Peak P – Initiation of left atrial contraction only | |
Complex QRS – One complete pulse | |
Peak T – Initiation of total cardiac contraction |
Question 5 |
Which type of white blood cells are concerned with the release of histamine and the natural anti coagulant heparin?
Monocytes | |
Neutrophils | |
Basophils | |
Eosinophils |
Question 6 |
What is true about RBCs in humans?
They do not carry CO2 at all | |
They carry about 20-25 percent of CO2 | |
They transport 99.5 percent of O2 | |
They transport about 80 percent oxygen only and the rest 20 percent of it is transported in dissolved state in blood plasma |
Question 7 |
If due to some injury the chordae tendinae of the tricuspid valve of the human heart is partially non-functional, what will be the immediate effect?
The flow of blood into the pulmonary artery will be reduced | |
The flow of blood into the aorta will be slowed down | |
The pacemaker will stop working | |
The blood will tend to flow back into the left atrium |
Question 8 |
The cells lining the blood vessels belong to the category of
Columnar epithelium | |
Connective tissue | |
Smooth muscle tissue | |
Squamous epithelium |
Question 9 |
In humans, blood passes from the post caval to the diastolic right atrium of heart due to:
Pressure difference between the post caval and atrium | |
Pushing open of the venous valves | |
Suction pull | |
Stimulation of the sino auricular node |
Question 10 |
The most active phagocytic white blood cells are:
Neutrophils and monocytes | |
Neutrophils and eosinophils | |
Lymphocytes and macrophages | |
Eosinophils and lymphocytes |
Question 11 |
To obtain a standard ECG, a patient is connected to the machine with three electrodes
One to each wrist and to the left ankle | |
One to each ankle and to the left wrist | |
One to each wrist and to the left chest region | |
One to each ankle and to the left chest region |
Question 12 |
The blood does not clot inside the body because of :
Oxygenation of blood | |
Movement of blood | |
Heparin in blood | |
Absence of fibrinogen in blood |
Question 13 |
Which is the correct sequence of arrangement of types of W.B.C. in decreasing order in terms of number per mm3 of human blood?
Eosinophils > Basophils > Neutrophils | |
Basophils > Eosinophils > Neutrophils | |
Neutrophils > Eosinophils > Basophils | |
Eosinophils > Neutrophils > Basophils |
Question 14 |
The blood calcium level is lowered by the deficiency of:
Calcitonin | |
Parathormone | |
Thyroxine | |
Both Calcitonin and Parathormone |
Question 15 |
The average diameter of Red Blood Corpuscles of man is
7.2 μm | |
8.1 μm | |
9.2 μm | |
10.3 μm |
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