Platelets are produced a. by RBCs that shatter as they age. Cardiac muscle cells a. are NOT striated. Cardiac muscle cells a. function as a single motor unit. The AV valves close a. during atrial contraction. AV bundle 20.
Ventricles pump blood out of the heart when the ventricular pressure is greater than a. zero.
Strong sympathetic stimulation of the cardiovascular system a. occurs when your BP is above normal. Atherosclerosis and hypertension may damage blood vessels in your a. coronary circulation. You know that hypertension a. occurs only in males. The air that travels through the airways on the way to the alveoli is a. warmed up. On average, vital capacity is larger in a. women than men.