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Read the following statements.
i) Adrenalin increases cardiac output
ii) Parasympathetic signals increase rate of heart beat
iii) Nodal tissue is autorhythmic
iv) Human heart is neurogenic
(v) Sympathetic signals decrease ventricular contraction
Which of the above are correct?

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An Intiative by Sri Chaitanya

i and iii

ii, iii and iv

i, iii, v

i and ii

answer is A.

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Detailed Solution

Adrenalin increases cardiac output.

Nodal tissue is autorhythmic.

Parasympathetic signals decrease rate of heartbeat.

Human heart is myogenic.

Sympathetic signals increase ventricular contraction.

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