Doctors often break down low blood pressure (hypotension) into categories, depending on the causes and other factors. Some types of low blood pressure include: Low blood pressure on standing up (orthostatic, or postural, hypotension). This is a sudden drop in blood pressure when you stand up from a sitting position or after lying down.
The dermis is the middle layer of skin. It is a diverse combination of blood vessels, nerves, hair follicles and sebaceous (or oil) glands. The proteins collagen and elastin are found in the dermis. They provide support and elasticity to the skin. The sun's rays can break down these proteins and, eventually, the skin begins to wrinkle and sag.
Best Answer: The upper layer of the slin is called the 'epidermis'. It contains no blood vessels or nerves. Blood nourishes this layer by diffusion.The middle layer of the skin, the layer that is asked about in this question is called the 'dermis' and conatins blood vessels, nerves and other structures. The lower layer of the skin is called the 'sub-cutis' and contains fat.est Answer: The upper layer of the slin is called the 'epidermis'. It contains no blood vessels or nerves. Blood nourishes this layer by diffusion.