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Anatomy QIII:QII

Ch. 18 : The Heart

circuit which takes blood to and from the lungs pulmonary circuit
circuit in which vessels transport blood to and from the body tissues systemic circuit
part of the heart which receives blood from the pulmonary and systemic circuits atria
part of heart which function as the pumping chambers for the pulmonary and systemic circuits ventricles
where is the opening for the coronary sinus? the right atrium
covering of the heart pericardium
external layer of the pericardium fibrous pericardium
how many layers form the serous pericardium? 2
what is the outer layer of the serous pericardium? parietal pericardium
what is the inner layer of the serous pericardium? visceral pericardium
another name for the visceral pericardium epicardium
the heart wall is comprised of how many layers? 3
the external layer of the heart wall epicardium
the epicardium is also known as visceral pericardium
middles layer of the heart wall, consisting of cardiac muscle tissue myocardium
inner layer of the heart wall, forms the heart valves endocardium
referred to as internal divisions between the right atrium and left atrium, and right ventricle from left ventricle septa
an external groove that marks the division between the atria and ventricles coronary sulcus
external grooves that mark the division between the ventricles on both the anterior and posterior side of the heart anterior and posterior interventricular sulcus
the receiving chamber for oxygen-poor blood from the systemic circuit right atrium
the superior vena cava is formed in the right atrium
receives oxygen-poor blood draining superior to the diaphragm superior vena cava
the inferior vena cava is formed in the right atrium
receives oxygen-poor blood draining inferior to the diaphragm inferior vena cava
receives oxygen-poor blood draining from the walls of the heart itself coronary sinus
remnant of a fetal circulatory structure fossa ovalis
where is the fossa ovalis found? right atrium
valve located between the right atrium and right ventricle (2 names) tricuspid valve, right AV valve
the pumping chamber for the pulmonary circuit right ventricle
vessel leaving the right ventricle, pumps oxygen-poor blood to the lungs pulmonary trunk
cone-shaped muscles projecting from the ventricular wall papillary muscles
thin strong bands attached to the papillary muscles and the flaps of the tricuspid valve, help prevent backflow of blood from right atrium to right ventricle chordae tendinae
where are the chordae tendinae and papillary muscles located? the ventricles
valve located at the base of the pulmonary trunk pulmonary semilunar valve
receiving chamber for oxygen-rich blood left atrium
receives oxygen-rich blood returning from the right lung 2 right pulmonary veins
recevies oxygen-rich blood returning from the left lung 2 left pulmonary veins
the four pulmonary veins empty into left atrium
located between the left atrium and left ventricle (3 names) bicuspid valve, mitral valve, left AV valve
pumping chamber for the systemic circuit left ventricle
vessel which leaves the left ventricle aorta
valve located at the base of the aorta aortic semilunar valve
at rest, the heart beats how many times per minute 70-80 beats
which has thicker walls, atria or ventricles? ventricles
which ventricle has walls 3 times thicker than the other? the left ventricle
this system sets the heart's intrinsic heart rate conducting system
the "internal pacemaker" of our heart sinoatrial node
the sinoatrial node is located right atrium
these autonomic nervous system fibers slow the heart rate parasympathetic
these autonomic nervous system fibers increase the heart rate sympathetic
these two arteries supply blood to the heart itself left and right coronary arteries
this structure drains the blood supply from the walls of the heart coronary sinus
c-like structures marking the opening of the vessels in the right atrium crista terminalis
Created by: amyziolkowski



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