Match the following related to the cardiac cycle. Column I Column II i Cardiac Cycle a 0 . 2 sec ii Atrial Systole b 0 . 4 sec iii Ventricular Systole c 0 . 1 sec iv Cardiac Diastole d 0 . 8 sec e 0 . 3 sec

i - d , ii - c , iii - e , iv - b

i - d , ii - c , iii - b , iv - e

i - b , ii - c , iii - e , iv - d

i - d , ii - a , iii - e , iv - b

EASY

Earn 100

Define ventricular diastole.

Important Questions on Body Fluids and Circulation

HARD

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

What does the QRS wave indicate in ECG?

MEDIUM

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

Doctors use a stethoscope to hear the sounds produced during each cardiac cycle. The second sound is heard when:

MEDIUM

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

A regular check on the unborn baby of a lady towards the end of her pregnancy showed a heart rate of 80 beats per minute. What would the doctor infer about the baby's heart condition from this?

EASY

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

How do parasympathetic neural signals affect the working of the heart?

MEDIUM

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

Assertion $(A)$ : Dub' is one of the sounds of the heart caused during a cardiac cycle.

Reason $(R)$ : The sound is due to closure of semilunar valves present at the bases of aortic arches.

EASY

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

Match the following related to the cardiac cycle.

Column I		Column II
$(i)$	Cardiac Cycle	$(a)$	$0.2 \sec$
$(ii)$	Atrial Systole	$(b)$	$0.4 \sec$
$(iii)$	Ventricular Systole	$(c)$	$0.1 \sec$
$(iv)$	Cardiac Diastole	$(d)$	$0.8 \sec$
		$(e)$	$0.3 \sec$

MEDIUM

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

Which one of the following statements is correct?

EASY

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

Calculate the cardiac output on an individual having

70

heartbeats/min with a stroke volume of

55 mL .

EASY

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

Which of the following is associated with decrease in cardiac output?

MEDIUM

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

What would be the heart rate of a person if the cardiac output is 5 L, blood volume in the ventricles at the end of diastole is 100 mL and at the end of ventricular systole is 50 mL?

HARD

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

The correct route through which pulse-making impulse travels in the heart is

EASY

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

In diastole, heart is filled by

EASY

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

The difference between systolic and diastolic pressure in human is

EASY

Biology>Human Anatomy and Physiology-II>Body Fluids and Circulation>Cardiac Cycle

What is cardiac cycle? Name its various events.