Exam 13:The Heart-Part B

In the cardiac cycle,all blood from the ventricles to the arteries must be _________________.

The pulmonary artery takes blood from the ___________ ventricle to the ______________.

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

The part of the heart that initiates each beat is the _________________________.

The coronary sinus is the union of the __________________________,and it returns blood to the ______________________.

The coronary arteries are branches of the _____________________ and supply blood to the ______________________.

The general function of all the valves of the heart is to __________________________________________________.

To calculate cardiac output,multiply _______________ times ___________________.

The pulmonary semilunar valve prevents backflow of blood from the __________________ to the _____________________________.

The heart is a double pump: The right side of the heart receives blood from the _____________ and pumps it to the ______________.

Impulses carried by the vagus nerves to the heart will __________________ the heart rate.

A sudden drop in blood pressure will stimulate the cardiac ___________________ center in the ________________________ of the brain.

The lining of the chambers of the heart is the ____________________________.

The aorta takes blood from the ______________ ventricle to the __________________.

The area in which the heart is located is called the _______________________________.

The part of the heart that initiates each beat is the ________________________,which is located in the ________________________.

The pulmonary veins return blood from the ______________________ to the _________________________ of the heart.

During exercise,if pulse is 140 and the stroke volume is 110 mL,the cardiac output is ________________.

The heart is directly superior to the ________________________ and is medial to the _______________________.

The heart is a double pump: the left side of the heart receives blood from the ______________ and pumps it to the ________________.