Heart And Circualtory Homework Flashcards
(15 cards)
The upper chambers are:
Receiving chambers
Blood passing through the tricuspid valve has just left which heart chamber ?
Right atrium
Which structure is known as the “pacemaker” of the heart ?
Sinoatrial node
The heart is located
mostly to the left of the midline of the sternum
The correct sequence for the conducting system is:
sinoatrial node, AV node, AV bundle, Purkinje fibers
The superior vena cava carries:
oxygen-poor blood to the right atrium
The heart valves are arranged with the:
tricuspid and pulmonary semilunar valves on the right side of the heart
A heartbeat that is less than 60 beats per minute is called
Bradycardia
Another name for “hardening of the arteries” is
Atherosclerosis
The innermost layer of the heart is called the:
Endocardium
The outermost layer of the heart is called the:
Both epicardium and visceral pericardium
Blood leaving the superior vena cava enters which heart chamber?
Right atrium
The bicuspid or mitral valve is the valve
between the left atrium and left ventricle
The first heart sound is the closing of the:
tricuspid and mitral valves
The aortic semilunar valve is the valve
that opens from the left ventricle into the artery
