Afterload is increased when aortic pressure and systemic vascular resistance are increased, by aortic valve stenosis, and by ventricular dilation. When afterload increases, there is an increase in end-systolic volume and a decrease in stroke volume.
Best Answer: Sharks typically swim with the even, liquid grace of a creature completely at home with its place in the Universe. Large sharks generally cruise at a leisurely 1.5 miles (2.4 kilometres) per hour.Because most species fare poorly in captivity, the maximum swimming speed of a shark has seldom been measured.f, as Thorburn and Bhana attest, the shark did indeed start from a standstill-which seems behaviorally unlikely-to cover the stated distance in the stated time, the little Mako must have achieved an acceleration of at least 50 feet (15 metres) per second, per second.
A bull shark can swim at speeds of around 25mph which is about 40.2km/h. The body of a bull shark is around 2.1-3.5 meters long which is about 6.9-11.5 feet long.As for weight, a bull shark will weigh around 90-230kg which is about 198-507 pounds.Bull sharks have the ability to live in both fresh water and salt water.he body of a tiger shark can be around 3-5 meters long which is about 9.8-16.4 feet long. Some can get even bigger than that, for instance one tiger shark was found to be 55 meters long which is about 18 feet long.