Cardiovascular System • CHAPTER 5 159Section Review 5–2
For the following medical terms, first write the suffix and its meaning. Then translate the meaning of the
remaining elements starting with the first part of the word. The first word is completed for you.
Term Meaning- endo/cardi/um -um: structure, thing; in, within; heart
- cardi/o/megaly
- aort/o/stenosis
- tachy/cardia
- phleb/itis
- thromb/o/lysis
- vas/o/spasm
- ather/oma
- electr/o/cardi/o/graphy
- atri/o/ventricul/ar
Competency Verification:Check your answers in Appendix B: Answer Key, page 573. If you are not satisfied with
your level of comprehension, review the vocabulary and complete the review again.
Correct Answers x 10 = % Score
Cardiovascular System
Layers of the Heart Wall
5–1 The heart is a four-chambered muscular organ located in the mediastin/um,
the area of the chest between the lungs. Its primary purpose is to pump blood through
the arteries, veins, and capillaries. The walls of the heart are composed of the
(1) endocardium,(2) myocardium, and (3) pericardium. Review the structures
of the heart and label its three layers in Figure 5–2.Frame 5–1to Frame 5–1