A graphic representation of the interface between skin epithelium and the underlying connective tissue the reticular dermis. The dermis is a layer of skin between the epidermis (with which it makes up the cutis) and subcutaneous tissues, that consists of connective tissue and cushions the body from stress and strain.part from these cells, the dermis is also composed of matrix components such as collagen (which provides strength), elastin (which provides elasticity), and extrafibrillar matrix, an extracellular gel-like substance primarily composed of glycosaminoglycans (most notably hyaluronan), proteoglycans, and glycoproteins.
Comment | | | | | print | email. Most of us think of sleep walking or sleep eating as strange, but separate and distinct from obstructive sleep apnea, but a recent study showed that in a group of people with obstructive sleep apnea, almost 10% had one or more of the parasomnias (sleep walking, sleep eating, sleep hallucinations and paralysis, etc.).
Obstructive sleep apnea. Obstructive sleep apnea (OSA) is the most common type of sleep apnea and is caused by complete or partial obstructions of the upper airway. It is characterized by repetitive episodes of shallow or paused breathing during sleep, despite the effort to breathe, and is usually associated with a reduction in blood oxygen saturation.