By Mayo Clinic Staff. Common warts are caused by an infection with the human papillomavirus (HPV). More than 100 types of HPV exist, but only a few cause warts on your hands. Other types of HPV are more likely to cause warts on your feet and other areas of your skin and mucous membranes. Most types of HPV cause relatively harmless conditions such as common warts, while others may cause serious disease such as cancer of the cervix.
The rate at which the glomerulus produces filtrate from plasma (the glomerular filtration rate) is much higher than in systemic capillaries because of the particular anatomical characteristics of the glomerulus.
Like soil pores, capillary tubes come in different diameters. When one end of a capillary tube is placed in water, water will rise in the tube because the capillary action is stronger than the pull of gravity. Because capillary action is stronger than gravity, water will never completely drain through the soil profile.