Stratovolcanoes sometimes have a crater at the summit that is formed by explosive ejection of material from a central vent. Sometimes the craters have been filled in by lava flows or lava domes, sometimes they are filled with glacial ice, and less commonly they are filled with water.
Podiatric management of those with peripheral vascular disease (poor circulation) should include: * A complete evaluation and assessment of the status of the circulation to the foot and communication to you about the risk that the foot is at for complications developing.
Causes of poor circulation. 1  diabetes and kidney problems. 2  atherosclerosis and blood pressure imbalances. 3  stress and alcoholism. 4  peripheral neuropathies. 5  hypothyroidism. 6  arthritis. 7  digestive conditions which affect absorption (Crohns Disease, irritable bowel syndrome, Coeliacs disease, inflammatory bowel disease).