CCI CCT Exam Study Guide Questions And Correct Answers
Epicardium
most superficial layer of the heart composed of visceral pericardium and surrounding
loose connective tissue, including elastic fibers.
Myocardium
middle layer of the heart and is composed of cardiac muscle cells with one centrally
located nucleus.
endocardium
Inner most layer of the heart. Smoothe muscle.
right atrium
gets deoxygenated blood from the body through the vena cava and pumps it into the
right ventricle which then sends it to the lungs to be oxygenated.
left atrium
gets the oxygenated blood from lungs via the pulmonary veins
right ventricle
pumps deoxygenated blood towards the lungs via pulmonary artery
pulmonary valve
semilunar valve between right ventricle and pulmonary artery, has 3 cusps
aortic valve
Pulmonary Valve The semilunar valve separating the aorta from the left ventricle that
prevents blood from flowing back into the left ventricle. Has 3 cusps.
S
, mitral valve
Located between the left atrium and left ventricle, prevents backflow of blood the the
left atrium when the left ventricle contracts. Has 2 flaps. Bicuspid valve or left
atrioventricular valve.
S
tricuspid valve
A valve that is at the entrance of the right atrium of the heart into the right ventricle and
that resembles the mitral valve in structure but has 3 cusps.
Venules
small vessels that collect blood from the capillaries into the veins. Allows deoxygenated
blood returning from capillary beds into larger blood vessels called veins.
Capillaries
any of the minute branching blood vessels forming networks between the arterioles and
the venules; exchange oxygen and other nutrients from the blood to tissues of the body.
Veins
blood vessels through which blood travels back to the heart. All veins other than the
pulmonary veins carry blood containing high concentrations of carbon dioxide and other
waste products. The pulmonary veins carry oxygen-rich blood from the lungs to the
heart.
Arterioles
Small branch of an artery leading into capillaries. Involved in the regulation of arterial
blood pressure as well as blood flow within the organ.
Arteries
Blood vessels that carry oxygen-rich blood away from the heart
Aortic pulse pressure
systolic pressure - diastolic pressure. The maximal change in aortic pressure during
systole, from the time aortic valve opens until peak aortic pressure is attained.
Epicardium
most superficial layer of the heart composed of visceral pericardium and surrounding
loose connective tissue, including elastic fibers.
Myocardium
middle layer of the heart and is composed of cardiac muscle cells with one centrally
located nucleus.
endocardium
Inner most layer of the heart. Smoothe muscle.
right atrium
gets deoxygenated blood from the body through the vena cava and pumps it into the
right ventricle which then sends it to the lungs to be oxygenated.
left atrium
gets the oxygenated blood from lungs via the pulmonary veins
right ventricle
pumps deoxygenated blood towards the lungs via pulmonary artery
pulmonary valve
semilunar valve between right ventricle and pulmonary artery, has 3 cusps
aortic valve
Pulmonary Valve The semilunar valve separating the aorta from the left ventricle that
prevents blood from flowing back into the left ventricle. Has 3 cusps.
S
, mitral valve
Located between the left atrium and left ventricle, prevents backflow of blood the the
left atrium when the left ventricle contracts. Has 2 flaps. Bicuspid valve or left
atrioventricular valve.
S
tricuspid valve
A valve that is at the entrance of the right atrium of the heart into the right ventricle and
that resembles the mitral valve in structure but has 3 cusps.
Venules
small vessels that collect blood from the capillaries into the veins. Allows deoxygenated
blood returning from capillary beds into larger blood vessels called veins.
Capillaries
any of the minute branching blood vessels forming networks between the arterioles and
the venules; exchange oxygen and other nutrients from the blood to tissues of the body.
Veins
blood vessels through which blood travels back to the heart. All veins other than the
pulmonary veins carry blood containing high concentrations of carbon dioxide and other
waste products. The pulmonary veins carry oxygen-rich blood from the lungs to the
heart.
Arterioles
Small branch of an artery leading into capillaries. Involved in the regulation of arterial
blood pressure as well as blood flow within the organ.
Arteries
Blood vessels that carry oxygen-rich blood away from the heart
Aortic pulse pressure
systolic pressure - diastolic pressure. The maximal change in aortic pressure during
systole, from the time aortic valve opens until peak aortic pressure is attained.
