Medical Terminology Simplified

574 APPENDIX B• Answer Key

Competency Verification, Figure 5–2

Heart structures, page 161.

1.endocardium 8.pulmonary trunk

2.myocardium 9.right lung

3.pericardium 10.left lung

4.aorta 11.left atrium

5.right atrium 12.right pulmonary veins

6.superior vena cava 13.left pulmonary veins

7.inferior vena cava

Competency Verification, Figure 5–3

Internal structures of the heart, page 163.

1.right atrium (RA) 10.right pulmonary artery

2.left atrium (LA) 11.left pulmonary artery

3.right ventricle (RV) 12.right pulmonary veins

4.left ventricle (LV) 13.left pulmonary veins

5.interventricular septum (IVS) 14.mitral valve

6.superior vena cava (SVC) 15.aortic valve

7.inferior vena cava (IVC) 16.aorta

8.tricuspid valve 17.branches of the aorta

9.pulmonary valve 18.descending aorta

Competency Verification, Figure 5–5

Heart structures depicting valves and cusps, page 172.

1.tricuspid valve 5.aortic valve

2.mitral valve 6.three cusps

3.chordae tendineae 7.two cusps

4.pulmonary valve

Section Review 5–2

1.-osis 6.atri/o 11.scler/o 16.-rrhexis 21.-phagia

2.epi- 7.hem/o, hemat/o 12.cardi/o 17.brady- 22.tri-

3.aort/o 8.-pnea 13.-spasm 18.-ole, -ule 23.bi-

4.peri- 9.-pathy 14.my/o 19.-rrhaphy 24.phleb/o, ven/o

5.arteri/o 10. -ectasis 15.tachy- 20.-stenosis 25.ventricul/o

Competency Verification, Figure 5–6

Conduction pathway of the heart, page 175.

1.sinoatrial (SA) node 4.bundle of His

2.right atrium (RA) 5.bundle branches

3.atrioventricular (AV) node 6.Purkinje fibers

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