{"version":"1.0","type":"card","id":"001d26dd-a5ce-411a-8355-a519ad517822","url":"https://stacklist.com/card/001d26dd-a5ce-411a-8355-a519ad517822","title":"Pulse | Cardiac Cycle, Blood Pressure & Heart Rate | Britannica","source_url":"https://www.britannica.com/science/pulse-physiology","note":"The pulse is a rhythmic phenomenon where the aortic valve in the heart opens and closes, creating a sensation that can be felt by applying gentle pressure to the skin at specific points where arteries meet the surface. When surrounding muscles are relaxed, the pulse becomes more pronounced.","image":{"url":"https://ucarecdn.com/1ca3849e-0317-418a-bd98-91175ef02be3/","alt":"Pulse | Cardiac Cycle, Blood Pressure & Heart Rate | Britannica","width":1200,"height":630},"stack":{"id":"9cbf5e3e-7e86-4e4c-9a2d-6915bc88e280","title":"history of medicine","url":"https://stacklist.com/stack/9cbf5e3e-7e86-4e4c-9a2d-6915bc88e280"},"created_at":"2025-07-27T02:37:55.272Z","updated_at":null,"aco":null,"_links":{"self":"/api/public/card/001d26dd-a5ce-411a-8355-a519ad517822.json","html":"https://stacklist.com/card/001d26dd-a5ce-411a-8355-a519ad517822","md":"/api/public/card/001d26dd-a5ce-411a-8355-a519ad517822.md","stack_json":"/api/public/stack/9cbf5e3e-7e86-4e4c-9a2d-6915bc88e280.json"}}