Chapter 8 Quiz

Which of the following represents the order of structures beginning inside the ventricle and traveling outward?

endocardium- myocardium- epicardium- pericardium

All of the following mechanisms assist in returning venous blood to the heart except:

an increase in heart rate

As blood travels through the circulatory system, the greatest drop in pressure occurs in:

arterioles

Which of the choices represents the order of vessels through which blood passes after leaving the heart?

artery- arteriole- capillary- venule- vein

________ carry blood away from the heart and ________ carry blood toward the heart.

Arteries........ veins

All of the following are part of the cardiac conduction system except the:

chordae tendineae

Which of the following would be an appropriate homeostatic response to a drop in blood pressure below what is normal?

vasoconstriction of arterioles

Which of the following statements regarding the cardiac cycle is false?

when the atria contract, the semilunar valves open

A pacemaker is used to correct:

cardiac arrhythmias

Which blood vessel is best suited for exchange and gases and nutrients with the surrounding tissue?

capillary

Which of the following is/ are involved in regulating blood pressure?

heart, baroreceptors, and cardiovascular center in medulla oblongata

Which of the following is a true statement regarding strokes?

immediate medical care is crucial to recovery

A heart attack occurs as a result of:

narrowing or blockage of the coronary arteries

Which of the following might be treated appropriately by administering clot-dissolving drugs?

pulmonary embolism

Which vein(s) carry oxygenated blood?

right and left pulmonary veins