Biology questions
20584 published questions with worked solutions.
- Which among the following is correct during each cardiac cycle?
- The first heart sound 'lubb' occurs in which phase of the cardiac cycle?
- In the ventricular diastole, the __A__ valve closes. This causes the second heart sound __B__. Choose the correct option for A...
- During each cardiac cycle, prominent sounds are produced, which can be easily heard through stethoscope. They are
- Determination of the cardiac output is done by
- When all the four-chambers of the heart are in relaxed state, it is called
- Cardiac output is the volume of
- Cardiac output is
- What would be the cardiac output of a person having 72 beats per minute and a stroke volume of 50 mL?
- Normal activities of the heart are regulated
- Cardiac centre is present in
- Neural signals through the sympathetic nerves (ANS) can increase the rate of heart beat by
- Neural centre in medulla oblongata can moderate the cardiac function through
- The cardiac cycle in normal person is about
- Which of the following is the correct pathway for propagation of cardiac impulse?
- The volume of blood each ventricle pumps out during a cardiac cycle is about
- The first heart sound is produced when
- The heart of a healthy man beats normally per minute
- Which one of the following statements is correct regarding blood pressure?
- Blood pressure in the mammalian aorta is maximum during