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24 Cards in this Set

  • Front
  • Back
"receiving chambers"
blood enters from veins that open into these upper cavities
"discharging chambers"
blood is pumped from the heart into arteries that exit from ventricles
cardiac muscle tissue that composes the wall of each heart chamber
Interventricular spetum
septum between the atrial chambers
lines each heart chamber by a thin layer of very sooth tissue
covering of the heart
consists of two layers of fiberous tissue
visceral paricardium (epicardium)
parietal pericardium
Visceral Paricardium
inner layer of pericardium
covers the heart like a "skin"
Parietal Paricardium
loose fitting sac around the heart
allows enough room for heart to beat
"upon" or "on"
contraction of the heart
relaxation of the heart
Atrioventricular valves
AV valves
two valves that seperate the atrial chambers from the ventricles
prevent backflow of blood
Bicuspid valve
AV valve located between the left atrium and ventricle
Tricuspid valve
AV valve located between the right atrium and ventricle
Semilunar valve
located between the two ventricular chambers and the large arteries that carry blood away from the heart
Pulmonary SL valve
located at the beginning of the pulmonary artery
Aortic SL valve
located at the beginning of the aorta
Pulmonary circulation
movement of blood from the right ventricle to the lungs
Systemic circulation
movement of blood from the left ventricle throughout the body
Coronary circulation
delivery of O2 and nutrient rich arterial blood to cardiac muscle tissue and return of O2 poor blood from tissue to venous system
Right and left coronary arteries
way by which blood flows into the heart muscle
Myocardial Infarction
O2 deprived cells of the heart become damaged and die
Angina Pectoris
severe chest pain when myocardium is deprived of adequate O2
warning that coronary arteries are no longer able to supply enough blood and O2 to heart muscles