Read the following statements (i-iv) about human heart: (i) Human heart is myogenic and our body has the ability to alter the heart rate, cardiac output but not stroke volume. (ii) P-wave in ECG marks

Question

Read the following statements (i-iv) about human heart:

(i) Human heart is myogenic and our body has the ability to alter the heart rate, cardiac output but not stroke volume.

(ii) P-wave in ECG marks the atrial systole.

(iii) Adrenal medullary hormones acts on SA node and increases heart rate.

How many statement is/are correct from the above?

Options:

Answer:

C

Solution:

Statement (i) is incorrect.

The body has ability to alter the stroke volume as well as the heart rate and thereby the cardiac output.

TestHub · Accepted Answer

Statement (i) is incorrect. The body has ability to alter the stroke volume as well as the heart rate and thereby the cardiac output.

Zoology - Body Fluids and Circulation Question with Solution | TestHub

Options:

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