Exam 13:The Heart-Part B

The ___________________________ return blood from the lungs to the left atrium.

The inferior vena cava returns blood from the ______________________ to the _________________________ of the heart.

For the myocardium,the most important substance in the blood is ____________________.

The term for contraction of the chambers of the heart is ___________________________.

The right and left AV valves close when the ______________________ contract.

The aortic and pulmonary semilunar valves prevent backflow of blood from the ___________________ to the ____________________ when the ____________________ relax.

The ________________________ returns blood from the upper body to the right atrium.

The _________________________ returns blood from the lower body to the right atrium.

The left ventricle pumps blood into the ___________________,and the right ventricle pumps blood into the ___________________________.

The normal range of resting heart rate for a healthy adult is __________ to _________ bpm.

In the cardiac cycle,the most important pumping of blood occurs from the ________________________ to the ________________________.

A certain level of cardiac output is needed at all times to maintain a normal ____________________ and to deliver sufficient ____________________ to all tissues.

The carotid sinus is strategically located to detect changes as the blood is on its way to the ___________________________.

A basketball player has a resting cardiac output of 5400 mL,a stroke volume of 90 mL,and a resting pulse of ________________________.

The sensory nerves for the aortic sinus and body are the ______________________ nerves.

During the cardiac cycle,when the ventricles are in systole,the atria are in _______________________.

The visceral pericardium is also called the ___________________________.

The mitral valve prevents backflow of blood from the _______________ to the ___________________.

The aortic sinus is strategically located to detect changes as soon as the blood leaves the __________________________.

The aortic semilunar valve prevents backflow of blood from the ___________________ to the ________________________.