Question
During ventricular systole
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Answer: DSolution: Due to contraction of the ventricles (ventricular systole), the pressure inside the ventricles rises, that force open the semilunar valvesof aorta and pulmonary artery so that the blood enters into these vessels. Oxygenated blood is pumped into the aorta from the left ventricle while deoxygenated blood is pumped into the pulmonary artery from the right ventricle.
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Question 2
The figure represents total period of one cardiac cycle i.e., 0.8 sec and A, B and C represent its stages. Identify A, B, C and select the correct statement regarding them Question 4
Read the following statements carefully (i) In fishes, the heart pumps out deoxygenated blood which is oxygenated by the gills and supplied to the body part from where deoxygenated blood is returned to the heart
(ii) The openings of the right and the left ventricles into pulmonary artery and aorta respectively are provided with the mitral valves
(iii) The nodal musculature has the ability to generate action potential without any external stimuli, i,e., it is autoexcitable
(iv) The T-wave of ECG represent depolarisation of the ventricles.
Which of the above two statements are incorrect ?
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Question Text | During ventricular systole |
Answer Type | Text solution:1 |
Upvotes | 150 |