Ch 17 Heart
vena cavae
!The right atrium receives blood from the: vena cavae pulmonary arteries pulmonary veins aorta
foramen ovale
!Which opening in the interatrial septum of the fetal heart connects the right and left atrium? fossa ovalis ductus arteriosus ligamentum arteriosum foramen ovale
true
?Blood on the right never mixes with blood on the left, once the heart is fully developed.
left ventricle
?Heart tissue dies during a myocardial infarction (MI), and a person's survival and recovery depend on the extent of cell death and the chamber(s) involved. In which chamber would the loss of function be most damaging to survival? Left Ventricle Right ventricle Left atrium Right atrium
true
?The first branch off the arch of the aorta is the brachiocephalic artery in both the sheep and the human.
aorta
?The right and left coronary arteries receive blood from the: aorta. coronary sinus. pulmonary trunk. superior vena cava.
mitral valve
?Which of the following valves would be affected if papillary muscles and/or chordae tendinae stopped functioning? None of the answers are correct Pulmonary valve Mitral valve Aortic valve
pulmonary trunk
?Which vessel is guarded by a semilunar valve at its base? pulmonary vein superior vena cava pulmonary trunk coronary sinus
left atrium
An insufficient mitral valve (bicuspid valve, or left atrioventricular valve) would allow the backflow of blood into the: right atrium. left ventricle. left atrium. aorta.
pulmonary trunk
Blood that leaves the right ventricle enters the __________. venae cavae pulmonary veins aorta pulmonary trunk
veins.
Both the left and right atria receive blood from arteries. the lungs. veins. the ventricles.
heart
Coronary circulation involves the delivery of oxygenated blood to the: brain. heart. liver. lungs.
coronary sinus.
Generally, coronary veins empty into a vessel known as the: aorta. superior vena cava. inferior vena cava. coronary sinus.
Pulmonary semilunar valve
Identfiy the valve located at the exit of the right ventricle. Pulmonary semilunar valve Bicuspid valve Aortic semilunar valve Tricuspid valve
auricle
Identify the ear like flaps that are attached to the top chambers of the heart. Atrium Auricle Pectinate muscles Coronary sinus
left ventricle
Identify the most muscular chamber. Left atrium Right ventricle Right atrium Left ventricle
Tricuspid valve
Identify the right atrioventricular valve. Bicuspid valve Tricuspid valve Aortic semilunar valve Pulmonary valve
Bicuspid (mitral) valve
Identify the valve found between the left atrium and left ventricle. Pulmonary valve Bicuspid (mitral) valve Aortic valve Tricuspid valve
Endocardium
Name the inner lining of the heart. Pericardium Endocardium Epicardium Myocardium
Trabeculae carneae
Name the irregular ridges of muscle lining the ventricles. Trabeculae carneae Pectinate muscles Chordae tendineae Papillary muscles
Pectinate muscles
Name the ridged bundles of muscle found projecting inside the right atrium. Intercalated discs Pectinate muscles Trabeculae carneae Papillary muscles
false
Oxygenated blood flows through the right side of the heart.
left ventricle
Rheumatic fever is a complication of untreated strep throat and the biggest cause of valve disorders. It can cause a condition caused aortic regurgitation in which the aortic semilunar valve is damaged and blood flows backwards into the: left atrium right ventricle left ventricle pulmonary trunk
systemic veins
Right ventricular heart failure prevents the right ventricle from efficiently plumping blood into the pulmonary circuit, thus creating a backup of blood into the right atrium and the: systemic arteries left ventricle left atrium systemic veins
left hip
The apex of the heart is situated toward the: right shoulder. left hip. left shoulder. posterior rib cage.
false
The base of the heart is located at the bottom of the heart.
left ventricle
The cardiac chamber with the thickest wall is the __________. right atrium left atrium right ventricle left ventricle
brachiocephalic vein.
The coronary sinus does NOT receive blood from the: great cardiac vein. brachiocephalic vein. middle cardiac vein. small cardiac vein.
chordae tendineae
The cusps of the atrioventricular valves attach to the papillary muscles via the __________. chordae tendineae trabeculae carneae intercalated discs Purkinje fibers
two pumps
The heart is actually (one, two, or three) pumps? one pump two pumps three pumps
mediastinum
The heart is situated in the middle of the thoracic cavity in a region known as the: cardiac notch. mediastinum. pleural cavity. dorsal cavity.
pulmonary circuit
The left side of the heart receives blood returning from the: lymphatic circulation pulmonary circuit systemic circuit coronary circulation
it has to generate enough pressure to pump blood throughout the entire systemic circuit
The left ventricle is the chamber with the thickest wall, because: it pumps the heavier oxygenated blood it has to generate enough pressure to pump blood throughout the entire pulmonary circuit it has to generate enough pressure to pump blood throughout the entire systemic circuit it receives more blood than the other chambers of the heart
false. only the right side of the ventricular chamber
The moderator band is found on both the right and left side of the heart. True/False
lungs
The pulmonary circuit involves blood flow from the heart to the: liver. brain. lungs. body.
tricuspid AV valve
The valve located between the right atrium and the right ventricle is the: tricuspid AV valve aortic semilunar valve pulmonary semilunar valve bicuspid AV valve
epicardium
The visceral pericardium is also known as the __________. parietal pericardium endocardium fibrous pericardium epicardium
epicardium
The visceral pericardium is the same as the: fibrous pericardium. myocardium. endocardium. epicardium.
Chordae tendineae
What fibrous structure functions to anchor the atrioventricular valves in a closed position? Papillary muscle Moderator band Chordae tendineae Trabeculae carneae
Left ventricle
What heart chamber pushes blood through the aortic semilunar valve? Right atrium Left atrium Left ventricle Right ventricle
pericardial fluid
What is found between the visceral pericardium and the parietal pericardium? the heart the lungs fibrous pericardium pericardial fluid
Provide a blood supply to the heart
What is the function of the coronary circulation? Provide a blood supply to the aortic arch Provide a blood supply to the heart Provide a blood supply to the lungs Provide a blood supply to the pericardium
A remnant of the ductus arteriosus
What is the ligamentum arteriosum? A ligament securing the aorta A ligament attaching the aorta to the superior vena cava A remnant of the ductus arteriosus A remnant of the foramen ovale
papillary muscles
What muscles, present in the ventricles, anchor the atrioventricular valves by tendon-like chords called chordae tendineae? trabeculae carneae pectinate muscles ligamentum arteriosum papillary muscles
interventricular sulcus
What surface groove separates the right and left ventricles? interventricular sulcus interventricular septum atrioventricular sulcus interatrial septum
tricuspid valve
What valve prevents the backflow of blood from the right ventricle into the right atrium? bicuspid (mitral) valve aortic valve tricuspid valve pulmonary valve
pulmonary veins
What vessel(s) deliver oxygenated blood to the left atrium? pulmonary trunk pulmonary arteries pulmonary veins aorta
right ventricle
Which chamber of the heart exits into the pulmonary trunk? Right atrium Left atrium Left ventricle Right ventricle
left ventricle
Which chamber pumps oxygenated blood out the aorta to the systemic circuit? right atrium left atrium left ventricle right ventricle
right atrium
Which chamber receives blood from the superior and inferior vena cavae? right atrium left atrium right ventricle left ventricle
right ventricle
Which heart chamber pumps unoxygenated blood out the pulmonary trunk? left atrium left ventricle right atrium right ventricle
left atrium
Which heart chamber receives blood from the pulmonary veins? left atrium left ventricle right atrium right ventricle
pulmonary vein
Which of the following does NOT return blood to the right atrium of the heart? inferior vena cava coronary sinus superior vena cava pulmonary vein
There will be low levels of oxygen in the blood.
Which of the following effects will one see if there is a right-sided heart failure (failure of the right ventricle to pump adequately)? !There will be low levels of oxygen in the blood. There will be a backflow of blood from the left ventricle into the left atrium. Blood will accumulate in the pulmonary capillaries. Blood pH levels will increase.
pulmonary vein
Which of the following vessels carries oxygenated blood? pulmonary artery pulmonary trunk pulmonary vein superior vena cava
non striated
Which of these is not a feature of cardiac muscle tissue? branched non-striated intercalated discs involuntary
the right marginal artery and the right posterior interventricular artery
Which two arteries arise from the right coronary artery? the left marginal artery and the right circumflex artery the right anterior interventricular artery and the right circumflex artery the right marginal artery and the right posterior interventricular artery the right anterior interventricular artery and the left posterior interventricular artery
aorta
Which vessel supplies the systemic circuit with oxygenated blood? aorta coronary sinus pulmonary trunk superior vena cava
