Nowadays, the standard basketball court dimensions are a rectangle 94 feet by 50 feet; however, high school basketball courts are a bit shorter, and the courts for junior high and youth leagues are even smaller.owadays, the standard basketball court dimensions are a rectangle 94 feet by 50 feet; however, high school basketball courts are a bit shorter, and the courts for junior high and youth leagues are even smaller.
Your heart's electrical system should maintain: 1  A steady heart rate of 60 to 100 beats per minute at rest. 2  The heart's electrical system also increases this rate to meet your body's needs during physical activity and lowers it during sleep.
The cardiac muscles work non-stop, day and night, 365 days a year. They work automatically, but are similar in structure to the skeletal muscles. They make the heart contract so that blood is squeezed out of the heart, and release so that the heart can fill up with blood again.