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Carnegie A&P Heart

the heart story

QuestionAnswer
the heart, which is frequently nicknamed a muscular pump, has how many layers? Three layers
the heart has how many chambers? For
the outer layer of the heart is termed the epicardium
the middle layer of the heart is termed the myocardium
the inner lining of the heart is termed the endocardium
what is the name of the serous membrane sac which encloses the heart? Pericardium
the right and left sides of the heart are divided by the muscular wall turn to be interventricular septum
the upper chambers of the heart are termed the atria which are smaller and thinner walled in the lower chambers, the ventricles
the AV valves separate the atria from the ventricles which valve separates the right atrium from the right ventricle? Tricuspid valve
connected to the AV valves are v? Chordae tendineae, the string like structures which are then attached to
what are the chordae tendineae attached to and what do they do? The papillary muscles, which control the movement of the valves
great the whole the responsible for the transportation of blood in and out of the heart which vessel carries blood from the system to the right atrium? The v neck avis inferior v neck eva and superior v neck eva
the pulmonary artery carries blood from where and to where? From the right ventricle to the lungs
the pulmonary veins carry blood from the lungs to the left atrium
lastly, the what keri what carries blood from the left ventricle to the body tissues? The aorta
what is considered the pacemaker of the heart and is responsible for the sinoatrial node
where is the sinoatrial node located? The right atrium
what is the second area of the heart to relay the impulse? what is the second area of the heart to relay the impulse? The AV node
what relays the impulse after the AV node bundle of His, bundle branches, Purkinje fibers
the term used to represent the positivity is the heart leading to contraction is depolarization
what is the term used to represent the negativity or resting state of the heart? Repolarization
the first heart sound is caused by closure of the tricuspid mitral valves
the second sound second heart sound is caused by the closure of the pulmonary artery & aortic valve
abnormal heart sounds are termed heart murmur
Created by: ma2b
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