Muscles of the heart create enough pressure to propel blood ______ feet.

Blood is supplied to the myocardium by means of the __________ arteries.

Which of the following helps return blood to the heart?Multiple ChoiceEnd systolic volumeContracting skeletal musclesPositive pressure in thoracic cavityValves in the arteries

What is the name of the force that blood exerts against artery walls?Multiple choice question.hydrostatic pressureblood pressurecirculation pressure

For blood to be ejected from the ventricles, ventricular pressures must be _____ pressures in the pulmonary trunk and aorta.Multiple choice question.greater thanthe same asless than

What causes blood pressure?Group of answer choicesremoval of oxygen from the bloodcontraction of the ventricles in the heartcholesterol in the bloodstress that exercise puts on heart muscle