Altered conduction through the L-Type calcium channel of contractile myocytes commonly occurs with the onset of heart failure. Where in the ECG below would abnormalities be observed in someone suffering from
this defect?

Blood cells bring oxygen to cells and take carbon dioxide away. true or false

Mary is 14 year old her resting heart rate is 70 beats per minute. calculate 50% of mary's maximum heart rate to fine her target heart rate

Which of the following is not true about a good stretching routine? a). can be hurried up once have it memorized b). improves issue elasticity and flexibility c). should last a minimum of five minutes d). prevents injury and increase athletic performance