The largest cross-sectional area in the total circulation and lowest blood flow velocity is found in:     A. The Aorta.   B. The capillaries.   C. The Vena Cava.   D. The small arteries.   E. The Pulmonary Vein.

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Q: Which of the following best describes the primary role of resistance vessels? Group of answer…

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Q: Which of the following is not a characteristic of a capillary? a. Fenestrated capillaries allow for…

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Q: A force that attracts fluid into the capillary from the tissue spaces is Select one: a. venous…

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Q: The major source of compliance for maintaining blood pressure during the diastolic interval flow…

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Q: Which of the following best describes an artery? Select one: a. thin-walled, and supplied with…

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Q: The ascending aorta and pulmonary trunk develop from the embryonic:- a. bulbus cordis only. b.…

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Q: Which of the following connects vessels through vascular anastomoses? a. precapillary sphincters c.…

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Q: For vessels with identical length which has the least resistance to blood flow: O A. An artery with…

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Q: All arteries in the body contain oxygen-rich blood, with theexception of thea. aorta. c. renal…

A: Answer is b.)  pulmonary arteries.

Q: Venous blood from the heart wall enters the right atriumthrough thea. superior vena cava.b. coronary…

A: The type of blood that is in deoxygenated condition and moves from the peripheral blood to reach the…

Q: al fluid hydrostatic pressure (IFHP). b. Net filtration pressure (NFP). c. Blood hydrostatic…

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Q: In which of these blood vessels are elastic fibers present in the largestamounts?a. large arteries…

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Q: When a person engages in strenuous, prolonged exercise, a. blood flow to the kidneys is reduced.b.…

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Q: Which of the following anatomical structures is not part of the systemic circuit a. left ventricle O…

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Q: Identify the major arteries originating from aorta and their respective branches to the: a. Head…

A: Arteries supply oxygenated blood to all the body parts. They arise from the aortic arch.

Q: Given these blood vessels:(1) aorta (3) pulmonary trunk(2) inferior vena cava (4) pulmonary…

A: The blood vessels are divided into the pulmonary and systemic circulation. The pulmonary circulation…

Q: List the three major veins that return blood from the thoraxto the superior vena cava.

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Q: List the vessels through which blood flows from the aorta to the myocardium and back to the right…

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Q: The innermost serous membrane attached to the heart muscle is called the: a. visceral pericardium.…

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Q: The major resistance element in the arterial circulation is: A. The arterioles. B. The aorta. OC.…

A: The circulatory system of the body is a continuous system of tubes called blood vessels. These blood…

Q: The velocity of blood flow decreases ifa. vessel radius increases.b. blood pressure increases.c.…

A: Blood flow is defined as the movement of blood through a blood vessels, organ or a tissue and it…

Q: A circulatory pathway in which the blood flows through two capillary beds in series - before it…

A: The circulatory pathways direct proper flow of blood through heart, lungs, and various associated…

Q: Identify the correct order of the blood flow pathway? (A) the pulmonary arteries carry oxygenated…

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Q: entricular contraction begins at the Select one: a. AV bundle. b. apex of the heart. c. top of the…

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Q: Which of the following decreases perfusion of a tissue? a. decreased total blood flow b. vasodilator…

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Q: Arteries differ from veins in their thicker ____ and ____. a. squamous epithelium . . . outer layer…

A: The cardiovascular system is composed of three components: the heart, blood, and blood vessels.…

Q: Mark the following statements as true or false. If a statement is false, correct it to make a true…

A: The cardiovascular system transports gases, nutrients, hormones and cellular waste products…

Q: Which of the following is/are involved in regulating blood pressure? a. heart b. baroreceptors c.…

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Q: mr. Holmes, a 72-year-old Caucasian male, suffered a heart attack which resulted in damage to a…

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Q: Which of the following characteristics is unique to capillaries and not to other blood vessels?…

A: The blood vascular system has various components that help in the smooth circulation throughout the…

Q: As we know that capillaries are single celled layers. Which blood vessel layer is present in…

A: Capillaries are the smallest blood vessels in body.They transport blood between arterioles and…

Q: After a man was stabbed in the chest, his face became blue and he lost consciousness from lack of…

A: CARDIAC TAMPONADE : it is a serious medical condition in which blood or fluids fill the space…

Q: The major compliance element in the arterial circulation is: O A. The arterioles. O B. The Vena…

A: The circulatory system of the body is a continuous system of tubes called as the  blood vessels…

Q: Where in the cardiovascular system would you expect the velocity of blood flow to be the highest?…

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Q: Mark ALL the statements about capillaries that are TRUE.

A: The very tiny blood vessels are called capillaries. These are mainly used to connect the arteries…

Q: The vasa vasorum Select one: a. are special capillaries that supply nutrients to the walls of…

A: The objective of the question is to identify the correct definition of the term 'vasa vasorum'.

Q: A branch of the aorta that supplies the liver, stomach, and spleen is thea. celiac trunk. d.…

A: The largest artery of the body is called the aorta. The four principal divisions of the aorta are…

Q: When comparing veins and arteries of the same diameter, which of the following statements is not…

A: The objective of the question is to identify the incorrect statement when comparing veins and…

Q: All the blood that passes through the aorta, except the blood that flowsinto the coronary vessels,…

A: Resistance is a force that opposes the flow of a blood.

Q: Which of the following would contain all the venous return specifically from the left upper limb,…

A: The heart is the muscular organ of human body and is main organ to collect and pump blood to…