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6.2 Transport system

WORDDEF.
Ventricle Either of two chambers in the human heart. Collect and pump blood. Below the atriums.
Atrium Either of two upper chambers connected to the ventricles in the human heart
Left ventricle Pumps blood into aorta and to systemic circulation
Right ventricle Pumps blood to pulmonary circulation to lungs
Which ventricle is thicker: R or L? Left ventricle
Vena Cava Either of two large veins that return oxygen-depleted blood to the right atrium of the heart
Aorta The large trunk artery that carries blood from the left ventricle of the heart to branch arteries
Pulmonary artery One of two arteries (branches of the pulmonary trunk) that carry venous blood from the heart to the lungs
Pulmonary vein Any of four veins that carry arterial blood from the lungs to the left atrium of the heart
Coronary artery The artery that branches from the aorta to supply blood to the heart
Valves Flaps of tissue without muscle
atrioventricular valve either of two heart valves through which blood flows from the atria to the ventricles
Tricuspid valve valve with three cusps; situated between the right atrium and the right ventricle
Bicuspid valve valve with two cusps; situated between the left atrium and the left ventricle
Semilunar valves Valves in the pulmonary artery and aorta
What controls the direction of blood flow? Atrioventricular and semilunar valves
Myogenic That originates in muscles
Cardiac muscle The muscle tissue of the heart
Sinoatrial node the impulse-generating (pacemaker) tissue located in the right atrium of the heart, and thus the generator of normal heart rhythm.
Atrioventricular node A node of specialized heart muscle located in the septal wall of the right atrium. It electrically connects atrial and ventricular chambers.
Plasma the colorless watery fluid of the blood and lymph that contains no cells
Erythrocyte Red blood cell: a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues;
Leucocyte A white blood cell; typically functions in immunity, such as phagocytosis or antibody production
Platelet A small colorless disk-shaped particle found in the blood of mammals, which plays an important role in the formation of blood clots
carotid artery either of two major arteries of the neck and head; branches from the aorta
carotid artery either of two major arteries of the neck and head; branches from the aorta
vasodilation dilation of blood vessels (especially the arteries)
Created by: 1532310001
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