MEDIUM
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IMPORTANT
Earn 100
Read the following statements:
(i) Vasa vasorum are small blood vessels supplying the walls of thicker vessels.
(ii) Systemic heart refers to the left atrium and left ventricle in higher vertebrates.
(iii) Chordae tendineae prevent the bulging of AV valves into ventricles during strong atrial contraction.
(iv) Stimulation of the vagus nerve increases the heart rate.
Which of the above statements are correct?
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Important Questions on Body Fluids and Circulation
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Which of the following is an incorrect statement w.r.t. the events of cardiac cycle?
EASY
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The first heart sound is A and B pitched compared to the second.
Fill in the blanks with correct options for A and B respectively.
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Identify the wrong statement w.r.t. the human heart.
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Which of the following valves is in contact with oxygenated blood only?
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Read the following statements and choose the correct option:
Statement I: The simultaneous contraction of both the atria causes atrial systole which increases the flow of blood into ventricles by about 30%.
Statement II: During ventricular systole, oxygenated blood is pumped into aorta while deoxygenated blood is pumped into pulmonary arteries.
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Which of the following is an incorrect statement w.r.t. SA node?
HARD
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Athletes have lower heart rate than others due to
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During pulmonary circulation
