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Select the incorrect statement w.r.t. nodal tissue of the heart.
(a)The entire nodal tissue from sino-atrial node to purkinje fibres has the ability to generate action potentials
(b)All parts of nodal tissue can generate same number of action potentials per minute
(c)Both sino-atrial and atrio-ventricular nodes are present in right atrium
(d)Sino-atrial node normally acts as the pacemaker

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Important Questions on Body Fluids and Circulation
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The total duration of cardiac cycle is:

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The blood group which lacks antigens on RBCs is '(i)' and humans with this blood group can receive blood from donors whose blood group is '(ii)'. The option that fills both blanks correctly is

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Blood from intestine is carried to the liver via _____ before it is returned to systemic circulation. The correct option which fills the blank is

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The average cardiac output in a healthy individual is

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Individuals with which blood group have both A and B antigens on the surface of their RBC s?

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Blood protein that mainly helps in maintaining osmotic balance is
