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Chapter 11

Quiz 2

Quiz 2

This activity contains 20 questions.

	Blood exits the left ventricle in which one of the following blood vessels?   aorta coronary artery pulmonary trunk pulmonary vein superior vena cava

	Compared to an artery, the wall of a vein differs in which of the following ways?   It consists of three coats called tunics. It is lined by a thin layer of endothelium. It contains smooth muscle. The middle tunic is thin. Veins have an extra layer of muscle.

	During fetal existence, this short blood vessel connects the pulmonary trunk to the aorta allowing blood to bypass the fetal lungs (which are nonfunctional):   ductus arteriosus ductus venosus foramen ovale umbilical artery umbilical vein

	Exchanges of nutrients, gases, wastes, etc. between blood and tissue cells occurs at __________.   arteries arterioles capillaries veins venules

	Identify the final portion of the intrinsic conduction system of the heart, which carries the wave of depolarization over the ventricles causing them to contract from the heart apex toward the atria:   atrioventricular bundle atrioventricular node bundle branches Purkinje fibers sinoatrial node

	Most often, systemic arterial blood pressure is measured in this artery with the auscultatory method, using a stethoscope and sphygmomanometer:   aorta brachial artery carotid artery femoral artery radial artery

	This heart valve prevents the return of blood to the right ventricle from the pulmonary trunk:   aortic semilunar valve bicuspid valve mitral valve pulmonary semilunar valve tricuspid valve

	This unique feature connects the anterior and posterior blood supplies of the brain providing more than one route for blood to reach brain tissue in a given area:   bundle branches coronary circulation ductus arteriosus hepatic portal circulation circle of Willis

	What serous membrane encloses the heart?   cutaneous membrane pericardium peritoneum pleura synovial membrane

	Which of the following blood vessels is NOT part of the systemic circulation?   aorta carotid arteries coronary artery inferior vena cava pulmonary artery

	Which of the following is NOT correct concerning the location of the heart?   It is inferior to the lungs. It is posterior to the diaphragm. It is superior to the lungs. It is anterior to the vertebrae.

	Which of the following does not aid the return of venous blood to the heart from the lower extremities?   valves in veins the muscle "pump" the respiratory "pump" gravity the large lumen of veins

	What affect does the vagus nerve have on the heart?   Slow steady heartbeat resulting in a stronger heartbeat. Increase heart rate 25%. None at all. It kills the person instantly.

	Which of the following indicates atrial depolarization in an electrocardiogram?   P wave QRS complex QT interval T wave U wave

	Which of the following is involved in anchoring the AV valve flaps to the walls of the ventricles?   adhesions cuspidors chordae tendinae fenestrations Purkinje fibers

	Which of the following is NOT true during ventricular systole?   AV valves close intraventricular pressure rises semilunar valves close the atria are relaxed chordae tendinae prevent AV valve flaps from flipping up into the atria

	Which of the following would NOT cause an increase in the heart rate?   exercise sympathetic stimulation stimulation of the vagus nerve release of epinephrine into the blood an increase in body temperature

	Which of the following would NOT lead to an increase in cardiac output?   an increase in stroke volume an increase in heart rate release of epinephrine into the bloodstream a decrease in venous return an increase in sympathetic stimulation.

	Which on of the following blood vessels carries oxygen-rich blood?   coronary sinus inferior vena cava pulmonary trunk pulmonary vein superior vena cava

	Which one of the following blood vessels returns blood to the left side of the heart or left atrium?   aorta coronary sinus pulmonary artery pulmonary vein superior vena cava

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