Exam 12: The Heart

The fibrous skeleton of the heart:

The ____________________ emerges from the left ventricle and takes blood to the ____________________.

The parts of the cardiac conduction pathway in the ventricles,in order,are the ____________________,____________________,and ____________________.

The coronary sinus is the union of the coronary ____ and returns blood to the ____.

Which sequence correctly describes blood flow?

The parts of the cardiac conduction pathway that bring about contraction of the ventricles are the:

The outermost of the pericardial membranes is the ____________________ pericardium.

The vessel that takes blood from the left ventricle to the body is the:

The heart rate is decreased by impulses carried by ____________________ nerves.

If cardiac output is 6,000 mL and stroke volume is 75 mL,then pulse is ____________________.

The part of the heart muscle that usually depolarizes first in a heartbeat is the ____________________.

Resting cardiac output is 5,440 mL.What are the pulse and stroke volume?

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

The atria of the heart produce the hormone ____________________ when blood pressure ____________________.

Which of the following statements are true of the nervous regulation of heart rate? (Read carefully and select all of the correct statements.)

The sensory nerves for the carotid sinus and body are the ____________________ nerves.

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

The ____________________ valve prevents backflow of blood from the left ventricle to the left atrium.

The cardiac cycle is the:

To calculate cardiac output: