optic disc, the small blind spot on the surface of the retina, located about 3 mm to the nasal side of the macula. It is the point where the fibers of the retina leave the eye and become part of the optic nerve.
Adult stem cells are found in many organs and tissues, including the skin. In fact, human skin is the largest repository of adult stem cells in the body. Skin stem cells reside in the basal layer of the epidermis where they remain dormant until they are activated by tissue injury or disease. 1.
SKIN INFLAMMATION. Mast cells are well known for their role in skin hypersensitivity reac-. tions.37â41 Skin mast cells are located close to sensory nerve endings42 and can. be triggered by neuropeptides,43â46 such as neurotensin (NT),47 nerve growth.