Flashcards in Chapter 11: Circulatory System II: Heart and Pumping Deck (31):
Organ responsible for pumping blood.
Primary tissue of which hearts are composed.
Largest artery in the body, serving to feed systemic circulation.
Largest vein in the body, serving to drain systemic circulation.
Major vein draining the head and the front limb or arm end of the body.
Superior vena cava
Major vein draining the tail and the rear limb or legs end of the body.
Inferior vena cava
Major pumping chamber of hearts.
Major pumping chamber of pulmonary circulation.
Major pumping chamber of systemic circulation.
Initial but less essential pumping chamber of hearts.
Initial but less essential pumping chamber of pulmonary circulation.
Initial but less essential pumping chamber of systemic circulation.
Means by which backflow of blood is prevented during the beating of the heart.
Means by which backflow is prevented between ventricles and atria.
Atrioventricular valves (AV valves)
Reversible partition between the left ventricle and the left atrium of the heart.
Reversible partition between the right ventricle and the right atrium of the heart.
Means by which backflow is prevented between ventricles and the major arteries that they feed with blood.
The interior lining of the heart.
The muscular layer of the heart.
The outer, connective tissue layer making up the heart.
Double-layer connective tissue sack that encloses the heart.
Volume within animals containing the heart.
Specialized cardiac muscle cells that conduct action potentials between different parts of the heart to increase the coordination of the heart's contraction.
Measure of blood flow through the ventricles.
The blood vessels that are directly responsible for supplying blood to cardiac muscle.
Measure of the extent to which the beating of the heart results in a pushing of the circulating fluid against especially arterial walls.
Sudden increase in blood pressure associated with systole.
Interval over which the chambers in the heart fill with blood.
Minimum blood pressure recorded over a given interval during blood pressure determination.
Interval over which the heart is actively pumping blood.