Abrupt cessation of circulation due to failure of the heart to pump effectively during systole.

1. Physiology – MCQ 82 – Valvular events in cardiac cycle
2. Physiology – MCQ 29 – Special features of Pulmonary circulation
3. Physiology – MCQ 81 – Absence of edema in acute cardiac failure – mechanism
4. Anatomy – MCQ 32 – Cardiac jelly contributes to development of