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what is the substance that stimulates the production of red blood cells which is the organ that secretes it under what conditions does this secretion
in high altitudes is it necessary for the blood to have more or less hemoglobinin high altitudes the air is rarefied and oxygen concentration is
what is hemoglobin f why does the fetus need a different hemoglobinhemoglobin f is the hemoglobin found in the mammalian fetus and hemoglobin a is
how different are oxyhemoglobin and hemoglobin where is it expected to find a higher concentration of oxyhemoglobin in peripheral tissues or in the
how do respiratory pigments actrespiratory pigments are oxygen-carrying molecules present in the blood when the oxygen concentration is high for
of which type of tissue is the heart made how is this tissue oxygenated and nutrifiedthe heart is made of striated cardiac muscle tissue the heart
what is the stage of the cardiac cycle during which the ventricles are filledthe filling of the ventricles with blood happens during diastolethe
is the ventricle lumen larger during systole or during diastolesystole is the stage of the cardiac cycle on which the ventricles contract so the
what is the valve that separates the aorta from the heart what is the importance of that valvethe valve among the left ventricle and the aorta is the
what is the function of the left ventricle where does the blood go after leaving the left ventriclethe function of the left ventricle is to get blood
to which heart chamber does the blood go after leaving the left atrium what is the valve that separates these compartmentsthe arterial blood that has
do the arteries that carry blood from the heart to the lungs have arterial or venous blood what happens to the blood when it passes through the
what is the valve that separates the right ventricle from the pulmonary artery why is that valve significant the valve that divides the right
what is the function of the right ventricle to where does the right ventricle pump the venous bloodthe function of the right ventricle is to get
which is the first human heart chamber into which blood enters where does the blood go after passing that chamber what is the name of the valve that
what is vena cava which type of blood circulates within the vena cavathe vena cava are either of two large veins that debouch into the right atrium
concerning the thickness of their walls how different are the heart chambersthe ventricle walls are thicker than the atrium walls as ventricles are
which are the heart chambers respectively where the entrance and the exit of blood occurthe heart chambers by which blood enters the heart are the
why in inflammatory and infectious conditions may clinical signs related to the lymphatic system occurthe lymph nodes or lymph glands have lymphoid
what is the lymphatic systemthe lymphatic system is a network of specialized valved vessels that drain interstitial fluid lymph the lymphatic system
what are varices why are they more common in the inferior limbs varix means abnormal enlargement of veins varices happen when excessive pressure
what are the valves of the venous system what is their functionthe valves of the venous system are structures within the veins that permit blood to
are the arteries or the veins constituted of more muscle tissue how dissimilar are the walls of these two types of blood vesselsthe arterial system
what are the capillaries of the vascular systemcapillaries are small blood vessels that perform exchange of substances among the blood and the body
what are venous vessels veins and venulesvenous vessels are each blood vessel that carries blood from the tissues to the heart veins and venules are