Skeletal Muscle Cross-Section with Visible Fibers
Stomach Cross-Section revealing Food Digestion in Male Torso
Causes of Hypertension
Shoulder Joint Displaying Humerus and Scapula
Synthetic Erythropoietin (EPO)
External Genitalia of a 12 Week Old Male Fetus
Plate of healthy food with lean protein, unrefined carbohydrates and vegetables
Macrophage Molecule
Female Torso Showing Cardiovascular System
Coronary Heart Disease
Child in candy isle at grocery store
Hemoglobin A1C and Insulin Receptor
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Colon with Polyp lateral view
Most cancer in the colon and rectum begins in polyps, tissue masses that grow out of the intestinal wall. Polyps grow slowly and most are benign, but they may become cancerous over time. When a polyp becomes cancerous, it starts to invade the intestinal wall and may spread into nearby lymph nodes or capillaries. From there the cancerous cells can enter into the lymphatic system or the bloodstream and metastasize, spreading to areas distant from the original site. There they may form new tumors.