A lack of the vitamins B-12 and folate can keep your body from producing enough red blood cells (anemia), causing low blood pressure. Medications that can cause low blood pressure. Some medications can cause low blood pressure, including: Water pills (diuretics), such as furosemide (Lasix) and hydrochlorothiazide (Maxzide, Microzide, others)
The dermal papillae are part of the uppermost layer of the dermis, the papillary dermis, and the ridges they form greatly increase the surface area between the dermis and epidermis.
Friction ridge skin is covered with a corrugated texture of ridges that enhance the ability of the hand (and feet) to grasp or grip surfaces. The ridges are three-dimensional structures with irregular surfaces, separated by narrower furrows or valleys. The surface features of friction ridge skin are