oxygen to the brain that may lead to reversible or irreversible paralysis. Hypertension: High blood pressure coronary artery disease High Cholesterol Digestive , excretory (and urinary ) systems (mouth, oesophagus, stomach, small intestine, large intestine, rectum, anus, liver, gallbladder, pancreas, appendix, kidneys, ureter, bladder, urethra). Ensures the digestion and processing food,