Angina<span> (also called </span>angina pectoris<span>) is defined as: “a condition marked by severe pain in the chest, often also spreading to the shoulders, arms, and neck, owing to an inadequate blood supply to the </span>heart<span>.” A </span>heart attack<span> occurs when this same process lasts long enough to cause permanent damage to the </span>heart<span> muscle.</span>
Make sure to be careful with residents
This is heavily disputed, and honestly, it varies on a person-by-person basis. Some people are visual learners (so it's effective for them to use videos and pictures to help them study), some prefer being hands-on, etc...
Generally though, I'd say the most effective method that works for most people is through visceralisation. This is the process of associating concepts, words. phrases etc. with your different senses (sound, touch, images...). You can read up more on it by searching up "visceralisation for studying".