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The partition where the bundle branches are located is called the __________.

interventricular septum

Crushing chest pain caused by oxygen deprivation of the myocardium is called __________.

angina pectoris

The visceral layer of the serous pericardium is actually the same layer as the __________.

epicardium

The two superior receiving chambers of the heart are known as the __________, while the two inferior discharging chambers of the heart are known as the __________

atria; ventricles

The valves located between the atria and ventricles are known as the __________ valves.

atrioventricular

The pointed tip of the heart that is directed toward the left hip is called the __________.

apex

Lack of adequate blood supply to the heart is called __________.

ischemia

When ventricles __________, the AV valves are closed.

contract

The circulation from the heart to the lungs and back is known as __________ circulation

pulmonary

__________ are abnormal heart sounds that are fairly common in young children with healthy hearts because their heart walls are relatively thin and vibrate with rushing blood

heart murmurs

The term that means heart contraction is __________.

systole

The average heart beats about __________ times per minute

75

The smallest blood vessels known as __________ connect arterioles and venules.

capillaries

The narrowing of blood vessels is known as __________.

vasoconstriction

The thick layer of the heart wall that contains contractile cardiac muscle tissue is the:

MYOCARDIUM

The layer of the heart wall synonymous with the visceral layer of the serous pericardium is:

epicardium

What structure divides the left from the right ventricle:

interventricular septum

When the ventricles contract, the bicuspid (mitral) valve prevents blood from flowing from the:

left ventricle to the left atrium

The superior vena cava empties:

deoxygenated blood into the right atrium

The aortic semilunar valve is composed of:

three cusps and opens when the left ventricle contracts

Which one of the following represents the correct path for the transmission of an impulse in the intrinsic conduction system of the heart:

sinoatrial (SA) node, atrioventricular (AV) node, atrioventricular (AV) bundle, right and left bundle branches, Purkinje fibers

A person with a heart rate of 75 beats per minute and a stroke volume of 60 mL per beat has a cardiac output of:

4500 mL/minute

The path of blood flow within the systemic vascular system is:

arteries, arterioles, capillary beds, venules, veins

Which one is the correct sequence going from the outermost to the innermost layer of a blood vessel wall:

tunica externa, tunica media, tunica intima

The right and left renal veins empty blood from the:

inferior vena cava

Which one of the following areas is NOT a pressure point:

renal artery

Cardiac muscle is enclosed by a double sac of serous membrane known as the peritoneum. true or false

false

The chordae tendineae anchor the semilunar valves to the walls of the ventricles. true or false

false

The semilunar valves prevent the backflow of blood into the atria when the ventricles are contracting.

false

Systole means contraction of the ventricles. true or false

true

The portion of the aorta in the abdominopelvic cavity is known as the thoracic aorta true or false

false

Heart chamber with the thickest wall

left ventricle

Superior discharging chamber on the left side of the heart

left ventricle

Heart chamber that pumps blood to the pulmonary trunk

right ventricle

Heart chamber that contains the sinoatrial node

right atrium

Roof of this chamber contains the bicuspid valve

left ventricle

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