- 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