Search any question & find its solution
Question:
Answered & Verified by Expert
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:
(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?
Solution:
2127 Upvotes
Verified Answer
The correct answer is:
Two
Statement (i) is incorrect.
The body has ability to alter the stroke volume as well as the heart rate and thereby the cardiac output.
The body has ability to alter the stroke volume as well as the heart rate and thereby the cardiac output.
Looking for more such questions to practice?
Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.