Myocardial infarction is an ischemic disease in which a coronary artery supplying blood to the heart muscle is stenotic or obstructed, resulting in cardiac tissue necrosis.
It is generally agreed that sperms swim by beating or rotating their soft tails. However, a research team led by scientists from City University of Hong Kong (CityU) has discovered that ray sperms move by rotating both the tail and the head. The team further investigated the motion pattern and demonstrated it with a robot. Their study has expanded the knowledge on the microorganisms motion and provided inspiration for robot engineering design.