Homework Answers
Answer first) The statement given is TRUE.
Blood pressure in the veins is much lower than the arteries. This is because arteries receive direct blood supply from the heart. Also the contractile capacity of veins is lower as compared to arteries. Veins also have thinner tunica media as compared to arteries. These features are responsible for veins to be low blood pressure vessels.
Answer second) The statement is TRUE.
Blood generally flows from an area of high pressure to low pressure. Among three major vessels of the circulatory system (arteries, capillary and veins), arteries have highest blood pressure followed by capillary and then veins. Hence, blood from arteries flows in to capillaries and from capillaries blood flows directly in to veins. Therefore, this statement is correct.
Answer third) The statement is FALSE
Veins contain one way valve which ensure flow of blood in only one direction. In arteries as well blood flows in a single direction, however, arteries do not have any valve for this. As heart directly pump blood in to the arteries, there is no requirement of valve to ensure blood flow direction (but in arteries as well, blood flows in one direction.) Hence, the statement is incorrect.
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Veins are low blood pressure vessels. True False QUESTION 26 Cappillary blood flows directly into veins....
Complete the Concept Map to compare and contrast the structure and function of arteries and veins....
Complete the Concept Map to compare and contrast the
structure and function of arteries and veins.
Answer choices: arterioles, muscular arteries, any
blood vessels, veins, vasoconstriction, elastic arteries, the
feeling of a pulse, venules, arteries
Reset Help arterioles muscular arteries any blood vessels any blood vessels veins veins vasoconstriction vasoconstriction elastic arteries the feeling of a venules arteries that directly drain(s) blood from capillaries is/are called that direct(s) blood one way toward the heart using valve is/are called that can...
e nated blood. Arteries carry oxygenated blood whereas veins are True False QUESTION 9 Colloid osmotic...
e nated blood. Arteries carry oxygenated blood whereas veins are True False QUESTION 9 Colloid osmotic pressure, IT, is determined by the concentration of in a fluid compartment such as the plasma or interstita fuid QUESTION 10 Click Save and Submit to save and submit. Click Save All Answers to see all answer
Which of the following is true about most human hearts? O a one-way valve moves blood...
Which of the following is true about most human hearts? O a one-way valve moves blood directly from the right atrium to the right ventricle two-way valves move blood between the left and right atria O one-way valves move blood directly from atria to major arteries and veins O a one-way valve moves blood between the left and right ventricles O none of the above are true about most human hearts
Veins are not subjected to strong blood pressure like arteries but still have to return blood...
Veins are not subjected to strong blood pressure like arteries but still have to return blood to the heart. True or false. Veins that carry blood away from the head and neck toward the heart rely on muscle contractions so that blood can be returned to the heart.
17. Blood pressure increases as a result of a. narrowing of the blood vessels. b. widening...
17. Blood pressure increases as a result of a. narrowing of the blood vessels. b. widening of the blood vessels.' c. thinning of the blood. d. thickening of the blood. 18. Patients with cardiovascular disease are usually placed on a. low-sugar diet. b. low-salt diet c. low-protein diet. d. low-carbohydrate diet. 19. Capillaries connect a. arteries to arteries.
17. Blood pressure incre ses as a result of a narrowing of the blood vessels. b....
17. Blood pressure incre ses as a result of a narrowing of the blood vessels. b. widening of the blood vessels. c thinning of the blood. d. thickening of the blood. 18. Patients with cardiovascular disease are usually place a. low-sugar diet. b. low-salt diet c. low-protein diet. d. low-carbohydrate diet. 19. Capillaries connect a. arteries to arteries.
26. The velocity of blood flow is in direct proportion to the total cross-sectional area of...
26. The velocity of blood flow is in direct proportion to the total cross-sectional area of the blood vessels b, slower in the arteries than in capillaries because arteries relatively large diameter slower in the veins than in the capillaries because veins diameter slowest in the capillaries b c. have a large d. ecause the total cross-sectional area is the 27. Which of these is NOT a function of lymph nodes a. house B-lymphocytes b. filter lymph d. produce lymphocytes...
1. Systolic blood pressure of the vein equal to 70 mmHg. (True/ False) 2. During exercise,...
1. Systolic blood pressure of the vein equal to 70 mmHg. (True/ False) 2. During exercise, for example, a greater percentage of the total blood flow is diverted to skeletal muscles leading to a sudden drop in blood pressure. (True/ False) 3. In measuring diastolic blood pressure, heart sound must be heard by the stethoscope when the sphygmomanometer recording normal blood pressure of 80 mmHg. (True/ False) 4. High blood cholesterol interferes with the elasticity of the arteries resulting in...
Why do we need the "skeletal muscle pump" to help get blood back to the heart?...
Why do we need the "skeletal muscle pump" to help get blood back to the heart? The large aggregate surface area of the capillaries dissipates the blood pressure. OA OB. The small aggregate surface area of the capillaries dissipates the blood pressure. C. Veins have thin, narrow walls and can't stand high blood pressures. OD. We need an extra boost to get blood past the valves in the veins. OE We need an extra boost to get blood past the...
Blood Vessels and the Circulatory System Overview of Circulatory System Blood vessels form closed tubular systems...
Blood Vessels and the Circulatory System Overview of Circulatory System Blood vessels form closed tubular systems which carry blood from the heart through the systemic and pulmonary systems. Arteries carry blood away from the heart to smaller arterioles, which feed capillary beds. The capillary beds empty into venules, which coalesce into larger veins. All veins eventually empty into the superior and inferior venae cavae or into the pulmonary veins. These vessels return blood to the heart. A. List the heart...
Complete the Concept Map to compare and contrast the
structure and function of arteries and veins.
Answer choices: arterioles, muscular arteries, any
blood vessels, veins, vasoconstriction, elastic arteries, the
feeling of a pulse, venules, arteries
Reset Help arterioles muscular arteries any blood vessels any blood vessels veins veins vasoconstriction vasoconstriction elastic arteries the feeling of a venules arteries that directly drain(s) blood from capillaries is/are called that direct(s) blood one way toward the heart using valve is/are called that can...
e nated blood. Arteries carry oxygenated blood whereas veins are True False QUESTION 9 Colloid osmotic pressure, IT, is determined by the concentration of in a fluid compartment such as the plasma or interstita fuid QUESTION 10 Click Save and Submit to save and submit. Click Save All Answers to see all answer
Which of the following is true about most human hearts? O a one-way valve moves blood directly from the right atrium to the right ventricle two-way valves move blood between the left and right atria O one-way valves move blood directly from atria to major arteries and veins O a one-way valve moves blood between the left and right ventricles O none of the above are true about most human hearts
Veins are not subjected to strong blood pressure like arteries but still have to return blood to the heart. True or false. Veins that carry blood away from the head and neck toward the heart rely on muscle contractions so that blood can be returned to the heart.
17. Blood pressure increases as a result of a. narrowing of the blood vessels. b. widening of the blood vessels.' c. thinning of the blood. d. thickening of the blood. 18. Patients with cardiovascular disease are usually placed on a. low-sugar diet. b. low-salt diet c. low-protein diet. d. low-carbohydrate diet. 19. Capillaries connect a. arteries to arteries.
17. Blood pressure incre ses as a result of a narrowing of the blood vessels. b. widening of the blood vessels. c thinning of the blood. d. thickening of the blood. 18. Patients with cardiovascular disease are usually place a. low-sugar diet. b. low-salt diet c. low-protein diet. d. low-carbohydrate diet. 19. Capillaries connect a. arteries to arteries.
26. The velocity of blood flow is in direct proportion to the total cross-sectional area of the blood vessels b, slower in the arteries than in capillaries because arteries relatively large diameter slower in the veins than in the capillaries because veins diameter slowest in the capillaries b c. have a large d. ecause the total cross-sectional area is the 27. Which of these is NOT a function of lymph nodes a. house B-lymphocytes b. filter lymph d. produce lymphocytes...
Why do we need the "skeletal muscle pump" to help get blood back to the heart? The large aggregate surface area of the capillaries dissipates the blood pressure. OA OB. The small aggregate surface area of the capillaries dissipates the blood pressure. C. Veins have thin, narrow walls and can't stand high blood pressures. OD. We need an extra boost to get blood past the valves in the veins. OE We need an extra boost to get blood past the...
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