Which of the following is a characteristic of a blood capillary?

Q. Which of the following is correct?

Q. Refer to the given figure in which A refers to pulmonary artery pressure and B refers to right ventricular pressure. Identify P, Q, R and S in the figure and match with the list (i - iv) given below.
(i) Isovolumetric ventricular contraction.
(ii) Ventricular ejection
(iii) Isovolumetric ventricular relaxation
(iv) Ventricular filling

Q. In normal blood pressure of 120/80 mm Hg, the numerator represents

Q. Consider the following statements:
1. The force that blood exerts force against the wall of a vessel is called blood pressure.
2. The pressure of blood inside the artery during contraction is called systolic pressure and pressure in an artery during relaxation is called diastolic pressure.
3. Blood pressure is measured with an instrument called sphygmomanometer.
Which of the statements given above are correct?

Q.

The cardiac cycle is the sequence of events that occurs when the heart beats. In the __(i)_, the heart ventricles ___(ii)___ and helps fill the heart with blood. In the __(iii)_____ the ventricles ___ _(iv)____and pump the blood to the body through the arteries.