The Cardiovascular System: Blood Vessels and Hemodynamics Quiz
Preview:
If blood pressure drops,a negative feedback mechanism causes.
A. activation of the venous reservoirs.
B. increase capillary blood flow.
C. increase heart rate, stroke volume, and vasoconstriction.
D. vasodilation of systemic arterioles.
Blood flows through the blood vessels because of the _________
A. establishment of a concentration gradient.
B. elastic recoil of the veins.
C. establishment of a pressure gradient.
D. viscosity of the blood.
Aldosterone affects blood pressure by
A. increasing heart rate.
B. increasing vasoconstriction of arterioles.
C. reducing blood volume.
D. increasing reabsorption of sodium ions and water by the kidneys.
If the blood pressure reading on patients is 142/95, the diastolic pressure is_________
A. 47 mmHg
B. 74 mmHg
C. 95 mm Hg
D. 142 mmHg
Blood vessels form a closed system of tubes that carries blood away from the heart are called.
A. Arteries
B. Arteriole
C. Capillaries
D. Venules
All the following are vascular resistance EXCEPT
A. Size of the lumen
B. Blood viscosity
C. Total blood vessel length
D. Volume of blood
Which of the followining vessels bring blood to the inferior vena cava?
A. coronary sinus and subclavian veins.
B. external jagular and carotid artery.
C. radial and brachial vein.
D. renal and common iliac veins
Cardiogenic shock is most likely to result from __________.
A. a severe bacterial infection
B. a systemic allergic reaction
C. multiple heart attacks
D. large-scale blood loss
Which of the following arteries branches to form the common hepatic artery, left gastric artery, and splenic artery?
A. superior mesenteric artery
B. inferior mesenteric artery
C. gonadal arteries
D. celiac trunk
Exchanges of substances between the blood and body tissue cells occur as blood flows through the________
A. Arteries
B. Arteriole
C. Capillaries
D. Venules
The exchange of nutrients and waste products takes place through the walls of_______
A. arterioles
B. arteries
C. capillaries.
D. venules
Which of the following represents pulmonary circulation as the blood flows from the right ventricle?
A. pulmonary trunk -pulmonary veins- pulmonary capillaries-pulmonary arteries
B. pulmonary arteries- pulmonary capillaries- pulmonary trunk- pulmonary veins
C. pulmonary capillaries- pulmonary trunk-pulmonary arteries-pulmonary veins.
D. pulmonary trunk- pulmonary arteries-pulmonary capillaries- pulmonary veins.
Which of the following is the correct sequence of layers in the vessel wall from outside to inside?
A. tunica externa, tunica media, tunica interna
B. tunica interna, tunica media, tunica externa
C. tunica media, tunica externa, tunica interna
D. tunica media, tunica interna, tunica externa
The hepatic portal system collects blood from the __________ and then routes it to the __________.
A. GI tract; liver
B. liver; kidneys
C. kidneys; liver
D. liver; GI tract
Which type of blood vessels plays a key role in regulating blood flow from arteries into capillaries.
A. Arteries
B. Arteriole
C. Capillaries
D. Venules