Which one of the following options represents a correct match between all terms of columns A and B?
(1) a-i, b -iii, c-ii, d -v, e-iv (2) a -ii, b -iv, c-iii, d-v, e-i
(3) a-iii, b-ii, c-iv, d-i, e-v (4) a- v, b-v, c-i, d-iii, e- ii

The arterial pulse wave generated by the heart during systole travels through arteries, reflecting the ejection of blood into the aorta and the elastic properties of arteries. Analyzing the pulse wave’s shape and key points enables understanding cardiovascular function and health.

The Arterial Pulse Wave and Its Key Points

The pressure wave recorded from an artery during a cardiac cycle typically displays characteristic points corresponding to important physiological events:

• a. Anacrotic limb (upstroke): The initial rapid rise in arterial pressure as the left ventricle contracts and blood is ejected.

• b. Systolic peak: The highest point of pressure reflecting peak systolic blood pressure.

• c. Dicrotic notch (incisura): A small downward deflection caused by the closure of the aortic valve.

• d. Diastolic run-off: The gradual decline in pressure during diastole as blood moves to peripheral vessels.

• e. Diastolic pressure: The lowest arterial pressure when the heart is relaxed during diastole.

Matching Points (a, b, c, d, e) to their Correct Features

Based on standard arterial waveform physiology:

Analyzing the Options Given:

Assuming standard labeling of features:

• i: Anacrotic limb (initial upstroke)

• ii: Dicrotic notch

• iii: Systolic peak

• iv: Diastolic pressure

• v: Diastolic run-off

Matching these:

• a (Anacrotic limb) aligns with (i)

• b (Systolic peak) aligns with (iii)

• c (Dicrotic notch) aligns with (ii)

• d (Diastolic run-off) aligns with (v)

• e (Diastolic pressure) aligns with (iv)

This corresponds exactly to option:

(1) a-i, b-iii, c-ii, d-v, e-iv

Summary Table

Explanation

• The anacrotic limb is the steep rise reflecting the burst of blood from the ventricle.

• The systolic peak represents maximum arterial pressure during ventricular contraction.

• The dicrotic notch indicates aortic valve closure, causing brief pressure drop.

• The diastolic run-off reflects gradual pressure decrease as blood flows into periphery.

• The diastolic pressure is the minimum pressure during ventricular relaxation.

Understanding these components is key in clinical assessment of cardiovascular function and identifying abnormalities such as arterial stiffness, valvular diseases, or hypertension.

Conclusion

The correct match between pulse wave points and features is:

(1) a-i, b -iii, c-ii, d -v, e-iv