1. Pathology
   1. coronary heart disease
      1. symptoms
         1. risk factors
      2. develops
      3. effects
   2. congestive heart failure
      1. medications
         1. captopil
         2. aldactone
         3. digoxin
         4. coreg
      2. symptoms
         1. genetics
      3. develops
      4. effects
   3. osteoporosis
   4. Vascular system
      1. edema
         1. Tillie
      2. distended veins
2. cardiac cycle
3. anatomy
   1. capilaries
   2. veins
   3. arteries