The normal heart is a strong, hard-working pump made of muscle tissue.
How a healthy heart works, Heart and Stroke Foundation
Tetralogy of Fallot: What is it?
Anatomy Case Study, PDF, Heart Valve
American Heart Association Scavenger Hunt Game (3 Versions)
The heart: Anatomy, how it works, and more
Heart and Circulatory System (for Teens) - Nemours KidsHealth
7 STEPS TO A HEALTHY HEART - Winston Medical Center
Atrial Fibrillation: Common Causes and Triggers - GoodRx
PHARMACEUTICAL DRUG REP Coreg CR Chrome Stethoscope Clock/Watch