Cardiovascular system reading 2 Flashcards
What are the small flaplike projections on the atria called?
Auricles
Identify the vessels that return deoxygenated blood to the right atrium.
Inferior vena cava
Superior vena cava
Coronary sinus
The blood vessels that supply nutrients and oxygen only to the heart muscle make up the specific type of circulation called the ______ circulation.
coronary
The chambers of the human heart include __.
2 atria and 2 ventricles
What vessels empty into the right atrium?
Inferior vena cava
Superior vena cava
Coronary sinus
True or false: The coronary circulation is made up of all of the systemic blood vessels.
False
The ______ receive blood from veins.
atria
What vessels empty into the left atrium?
Right pulmonary veins
Left pulmonary vein
The left atrium is divided from the right atrium by the ______.
interatrial septum
What is the name of the depression in the interatrial septum that marks the former location of the fetal opening?
Fossa ovalis
The fetal opening in the interatrial septum is referred to as the what?
foramen ovale
What vessel(s) carries blood out of the left ventricle?
Aorta
The fossa ovalis is a depression in the _____.
interatrial septum
The pulmonary trunk carries blood away from the _____.
right ventricle
What structure allows blood to flow between the atria in the embryo and fetus?
Foramen ovale
What vessel(s) exit(s) the right ventricle?
Pulmonary trunk
The right and left ventricles are divided from each other by the what?
interventricular septum
The fossa ovalis is a depression in the _____.
interatrial septum
The valves that prevent the backflow of blood into the atria are called what?
atrioventricular or AV
The valves that separate the upper and lower chambers of the heart are called ______ valves.
atrioventricular
The structures that contract and prevent the AV valves from moving backward into the atria are called ______.
papillary muscles
Which is another name for mitral valve?
Bicuspid
Chordae tendineae attach valves to ______.
papillary muscles
Papillary muscles tense the chordae tendineae just before ventricular ______.
contraction
The valve that prevents backflow into the right ventricle is the ______ or the right semilunar valve.
pulmonary
Blood exits the left ventricle through the ______ valve.
aortic semilunar
The valves between the ventricles and great vessels are called ______ valves.
semilunar
