Term
| Which of the following statements regarding circulatory systems is true? |
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Definition
| A circulatory system is necessary in any animal whose body is too large or too complex for vital chemicals to reach all parts of the body by diffusion. |
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Term
| The two basic types of circulatory systems that have evolved over time are |
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Definition
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Term
Adaptation to terrestrial life required major evolutionary changes. The change from gill breathing to lung breathing was accompanied by important changes in the
association of blood and interstitial fluid. |
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Definition
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Term
| Which of the following animals has a single circuit of blood flow and two heart chambers? |
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Definition
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Term
| Which of the following animals has a three-chambered heart? |
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Definition
| Snake or turtles, lizards |
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Term
| Although birds and mammals descended from different ancestors, they both have a four-chambered heart. This is the result of |
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Definition
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Term
| Which of the following statements about mammalian circulatory systems is false? |
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Definition
| The left side of a mammal's heart sends blood to the lungs. |
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Term
| Mammals have two atria and two ventricles in their hearts. True/False |
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Definition
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Term
| The pulmonary circuit carries blood between the heart and the lungs. T/F |
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Definition
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Term
| The systemic circuit carries blood between the heart and the rest of the body. T/F |
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Definition
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Term
| The left side of a mammal's heart sends blood to the lungs. T/F |
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Definition
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Term
| In mammals, blood returning from the head will pass through the ________ just before entering the right atrium. |
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Definition
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Term
| is the large vein which returns blood to the heart from the head, neck and both upper limbs |
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Definition
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Term
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Definition
| is the large vein which returns blood to the heart from the head, neck and both upper limbs |
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Term
| In mammals, which of the following vessels transports oxygenated blood from the lung back to the heart? |
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Definition
| Pulmonary Vein (only vein that carries Oxygenated Rich blood) |
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Term
| Oxygen-poor blood is carried from the heart of a mammal to the lungs via the |
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Definition
| pulmonary arteries (only artery that carries oxygen poor blood) |
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Term
| From the left ventricle, oxygen-rich blood flows through the |
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Definition
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Term
| the largest artery in the body originating from the left ventricle, carrying blood from the left side of the heart to the arteries of all limbs and organs except the lungs. |
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Definition
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Term
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Definition
| the largest artery in the body originating from the left ventricle, carrying blood from the left side of the heart to the arteries of all limbs and organs except the lungs. |
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Term
| During which phase of the heartbeat does the heart fill with blood? |
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Definition
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Term
| During ventricular systole, the ________ valves ________. |
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Definition
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Term
| The location of the heart's pacemaker is a specialized region of cardiac muscle called the |
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Definition
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Term
| Which blood vessels have the thinnest walls? |
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Definition
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Term
| In humans, which blood vessels have valves? |
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Definition
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Term
| In which of the following human blood vessels is the blood pressure lowest? |
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Definition
| veins in the head -- b/c veins have almost no pressure bc vein bring back blood by contraction |
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Term
| Blood pressure is highest in _____ and lowest in _____. |
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Definition
| highest in arteries, lowest in veins |
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Term
| Which kind of vessel has the lowest blood velocity? |
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Definition
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Term
| Which of the following statements regarding blood pressure is false? |
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Definition
| Hypertension is defined as persistent systolic pressure above 120 and/or diastolic above 80. |
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Term
| Hypertension is defined as persistent systolic pressure above 120 and/or diastolic above 80. T/F |
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Definition
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Term
| High blood pressure can lead to an enlarged and weakened heart, increased risk of heart attack, stroke, and kidney failure. T/F |
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Definition
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Term
| Normal blood pressure for adult humans is usually at or below 120/80. T/F |
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Definition
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Term
| The higher number in a blood pressure reading measures the force of a heart contraction. T/F |
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Definition
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Term
| Blood flow through capillaries is controlled by |
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Definition
| precapillary sphincters and smooth muscle in the walls of arterioles. |
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Term
| One way that substances move between blood and interstitial fluid is by |
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Definition
| pressure-driven flow through clefts between the epithelial cells of the capillary wall. |
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Term
| The liquid part of blood is called |
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Definition
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Term
| Which of these statements about erythrocytes is true? |
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Definition
| Erythrocytes are shaped like biconcave disks. This shape increases the cell's surface area and facilitates the diffusion of oxygen and carbon dioxide |
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Term
| Which of the following cells are phagocytes? |
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Definition
| monocytes and neutrophils |
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Term
| Phagocytes(monocytes and neutrophils) |
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Definition
| engulf and digest bacteria and debris from our own dead cells. |
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Term
| Which of the following statements about blood clotting is true? |
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Definition
| Threads of fibrin form a fibrin clot. |
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Term
| Multipotent stem cells found in the red marrow inside bones |
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Definition
| can differentiate into all blood cells and platelets. |
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Term
| Which of the following organisms has an open circulatory system? |
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Definition
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Term
| Which of the following organisms has an closed circulatory system? |
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Definition
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Term
| Blood is only tissue in a liquid matrix. T/F |
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Definition
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Term
Must have heart:muscular pump
that pumps blood:circulatory fluid
through blood vessels:set of tubes carry fluid |
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Definition
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Term
| Closed circulatory systems are found in all... |
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Definition
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Term
| Arteries carry blood away from the |
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Definition
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Term
| Veins return blood to the |
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Definition
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Term
| Capillaries convery blood ____ arteries and veins |
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Definition
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