Chapter 13 Test: The Heart
Sinus
An enlarged vein joining the cardiac veins to empty into the right atrium is called the coronary ________
Pulmonary trunk
Blood leaving the right ventricle enters the
Left Atrium
Blood returning from the lungs enters the _______ ______
Right Atrium
Blood returning from the systemic circulation first enters the
True
Capillaries connect the smallest arterioles to the smallest venules.
True
Capillary blood pressure favors filtration whereas colloid osmotic pressure favors reabsorption.
the atrioventricular valves are closed
During ventricular systole
False
Histamine causes vasoconstriction of the arterioles near the capillaries to decrease capillary permeability.
Ventricular systole
The QRS complex represents
Ventricular Repolarization
The T wave on an Electrocardiogram represents
Systole
The contraction phase of the cardiac cycle is called
Right atrium
The coronary sinus enters the
the atrioventricular valve close
The first heart sound is heard when
False
The first two aortic branches are called the right and left common carotid arteries.
Base
The great vessels of the heart are located at the _______ of the heart
Portal system
The hepatic portal vein pathway is called the hepatic ________ ______.
Endocardium
The most inner layer of the heart is the
Myocardium
The muscle layer of the heart is the
True
The pericardium is a serous membrane that surrounds the heart
True
The pulmonary and aortic valves have "half moon" shapes and are therefore referred to as "semilunar valves".
De-oxygenated blood
The pulmonary trunk carries
Diastole
The relaxation of a heart structure is called
Diastole
The relaxation phase of the cardiac cycle is called
False
The right atrium receives high-oxygenated blood through the pulmonary veins.
False
The right ventricles muscular wall is thicker than of the left ventricle.
Leg and Thigh
The saphenous vein is located in the
False
The tricuspid valve lies between the left atrium and ventricle.
Epicardium
The visceral pericardium is also called the what?
False
The volume of blood discharged from the ventricle with each contraction in an adult is called cardiac output
Septum
The wall that is located between ventricles is known as the
Veins
_____ are blood vessels that usually return blood to the heart
Arteries
_______ are blood vessels that usually carry blood away from the heart
P wave
depolarization of the atria represents on an electrocardiogram as the
75
how many times does the average heart beat per minute
Left atrium
pulmonary veins return to the
tricuspid valve
the atrioventricular valve that is located between the right atrium and ventricle is also called the
Between the left atrium and left ventricle
the bicuspid or mitral valve is located
Mitral valve
the bicuspid valve is also called the
perocardio cavity
the heart is surrounded by what cavity
perocardial cavity
the heart is surrounded by what cavity?
Lungs
the left and right pulmonary arteries carry blood to the
Heart
the left and right pulmonary veins carry blood to the
systemic circuit
the left ventricle pumps blood to the
Left Atrium
the left ventricle receives blood from the
right atrium
the pacemaker of the heart is located in the
Cardiac cycle
the period between the start of one heartbeat and the beginning of the next is called the
Pulmonary trunk
the pulmonary semilunar valve guards the entrance to the
Superior Vena Cava
the right atrium receives blood from the
lungs
the right ventricle pumps blood to the
Left ventricle
the thickest portion of the heart wall is located in the
