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.
The capillary vascular supply consists of two distinct capillary beds, the glomerulus and the peritubular capillary bed. Vessels leading to and from the glomerulus, the first capillary bed, are both arterioles: the afferent arteriole feeds the bed while the efferent arteriole drains it.The glomerular capillary bed has no parallel elsewhere in the body. It is a high-pressure bed along its entire length.ts high pressure is a result of two major factors: (1) the bed is fed and drained by arterioles (arterioles are high-resistance vessels as opposed to venules, which are low-resistance vessels), and (2) the afferent feeder arteriole is larger in diameter than the efferent arteriole draining the bed.