1.

Consider the following four statement (i) - (iv) and select the correct option. (i) SA node is natural pacemaker of heart (ii) Human heart has inter-auricular foramen (iii) Right atrioventricular valve is a semilunar value (iv) Normal systolic and diastolic pressure of human is 120 and 60 mm Hg respectively.A. `{:("(i) (ii) (iii) (iv)"),("F F T F"):}`B. `{:("(i) (ii) (iii) (iv)"),("F F T T"):}`C. `{:("(i) (ii) (iii) (iv)"),("T T F T"):}`D. `{:("(i) (ii) (iii) (iv)"),("T F F F"):}`

Answer» Correct Answer - D
SA node is natural pacemaker of heat. Human heart has inter-auricular septum. Right atrioventricular valve is a tricuspid valve. Normal systolic and diastolic pressure of humans is 120 mm Hg and 80 mm Hg respectively.


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