Which of the following statements (s) regarding the cardiac system is/are correct ?
(i) Human heart is an ectodermal derivative
(ii) Mitral valve guards the opening between the right atrium and left ventricle
(iii) SAN is located on the left upper corner of the right atrium
(iv) Stroke volume à Heart rate = Cardiac output.
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Explanation:
2)is wrong
mitral valve guards opening between left atrium and left ventricle
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