typical circulatory system consists of a. a fluid and a series of conduits only. b. a muscular pump only. c. blood and blood vessels only. d. a muscular pump, a fluid, and a series of conduits.
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A:
A typical circulatory system consists of
| a. |
a fluid and a series of conduits only. |
|
| b. |
a muscular pump only. |
|
| c. |
blood and blood vessels only. |
|
| d. |
a muscular pump, a fluid, and a series of conduits. |
Circulatory system is a system in which the nutrients and other materials are circulated throughout the body, the other material may be hormones, excretory substances etc.
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- a) List at least five things that a circulatory system does to help the body cells. Which of these is most important? b) Name some animals with an “open circ system” ; know how it works with some vessels, heart/pumps and hemolympth blood-like fluid c) what are the general differences between veins, capillaries and arteries? What do we call very tiny arteries? Very tiny veins?Which of the choices below best describes the systemic circulation of blood?a. The flow of blood into the right atrium and eventually out of the left ventricle.b. The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins.c. The movement of blood into the coronary arteries, through capillaries into the coronary sinus.d. The movement of blood from the aorta, through arteries and capillaries and then eventually to the vena cavae.Which of the following statements is correct? a. Arteries carry blood away from the heart and veins carry blood to the heart. b. Arteries carry blood to the heart and veins carry blood away from the heart. C. All arteries carry oxygen-rich blood and veins carry oxygen-poor blood. d. Arteries carry oxygen-poor blood and veins carry oxygen-rich blood.
- What are the components of the circulatory system? All that applyWhich of the following statements about the circulatory system is false? A. Blood in the aorta is oxygenated. B. Blood in the pulmonary artery is deoxygenated. C. Blood in the inferior vena cava is deoxygenated. D. Blood in the pulmonary vein is deoxygenated.How does an open circulatory system differ from a closed one? A)A closed circulatory system is completely encased in the body cavity whereas the open one is not. B)The open circulatory system has a combination of blood vessels and large thin-walled sinuses whereas a closed circulatory system has only vessels. C)An open circulatory system opens into the heart whereas the closed circulatory system does not. D)An open circulatory system drains into the mantle cavity whereas a closed circulatory system drains into the hemolymph. E)An open circulatory system opens into arteries and is drained by veins whereas in a closed one it is just the reverse.
- Why is a closed circulatory system more efficient than an open circulatory system?Which of the following statements is false?a. Only arteries carry oxygenated blood.b. Both arteries and veins have a layer of smooth muscle.c. Capillary beds lie between arteries and veins.d. Sphincters regulate the flow of blood through capillaries.A team of geologists just spent several weeks installing equipment on Mt. Rainier at an elevation of 10,000 feet. What TWO things would occur in their circulatory system? Group of answer choices Blood would be less viscous Decreased secretion of EPO from the kidney Increased production of RBCs Decreased production of RBCs Increased secretion of EPO from the kidney
- Which statement is true? a. Veins have more muscle and elastic fibers than arteries b. Arteries have more muscle and elastic fibers than veins c. Veins carry blood away from the heart d. Arteries carry blood to the heartWhich statement accurately explains why arterial walls are thicker than the walls of veins? A. Arteries need to withstand more hydrostatic pressure than do the veins. B. More blood flows through the arteries than through the veins. C. Arterial blood has more red blood cells than veins do. D. The higher oxygen content of arterial blood requires thicker walls. E. All of the above answer choices correctly answer the question.Figure 16.10 Which of the following statements about the circulatory system is false?a. Blood in the pulmonary vein is deoxygenated.b. Blood in the inferior vena cava is deoxygenated.c. Blood in the pulmonary artery is deoxygenated.d. Blood in the aorta is oxygenated.
