Anatomy Questions
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The force of the blood being ejected from the heart causes a regular expansion and contraction of the arterial walls, called the:
As blood enters the right atrium from the venae cavae, it flows next through the __________, __________, and __________.
The valve that lies between the right atrium and the right ventricle is the __________ valve.
Which of the following describes the umbilical vein?Transports oxygen-rich blood from the placenta to the fetusTransports oxygen-rich blood from the fetus to the placentaTransports oxygen-poor blood from the placenta to the fetusTransports oxygen-poor blood from the fetus to the placenta
Which of the following factors would cause an increase in the heart rate?EpinephrineExerciseParasympathetic stimulationCold
Select the correct statement regarding blood pressure.- The systolic blood pressure corresponds to the pressure generated in an artery at the peak of ventricular contraction.-A normal blood pressure reading for a healthy adult is 140/90 mm Hg .-In the systemic circuit, blood pressure is highest in the capillaries.The radial artery is most often used for taking a blood pressure measurement.
The three major types of blood vessels in the body are the ________, ________, and ________.
Systole is the rhythmic ________ phase of the cardiac cycle.
Blood vessels that permit oxygen and nutrients to exchange with carbon dioxide and waste materials are called:
A blood vessel that carries oxygenated blood from the lung to the left atrium is called the:
Which of these will decrease heart rate?sudden drop in blood pressure (BP)secretion of epinephrinestimulation by vagus nervesincrease in body temperature
Which of these allows nutrient-rich blood from the placenta to bypass the fetal liver and enter the inferior vena cava?ductus arteriosusductus venosusforamen ovaleumbilical artery
The walls of _______ are usually much thicker than the walls of _______.apillaries, arteriescapillaries, valvesveins, arteriesarteries, veins
By what pathway does oxygen leave capillaries to supply body tissues?moving through intercellular cleftsdiffusion through poresvesicular transportdiffusion through capillary cell membranes
The layer of the heart that actually contracts is the _______.serous pericardiumpericardiummyocardiumepicardium
What part of the heart's intrinsic conduction system carries impulses into the interventricular septum?atrioventricular (AV) bundleatrioventricular (AV) nodePurkinje fibersbundle branches
The _______ anchor the flaps of the valves to the walls of the ventricles.coronary sulcimarginal arterieschordate tendineaesemilunar valves
Most simply stated, the major function of the cardiovascular system is _______.excretionsecretionexpirationtransportation
The heart has _______ chambers and works as a _______ pump.two, singlefour, singlefour, doubletwo, double
What chamber of the heart will blood enter after passing through the bicuspid valve?left atriumleft ventricleright ventricleright atrium