Microvilli (singular: microvillus) are microscopic cellular membrane protrusions that increase the surface area of cells and minimize any increase in volume, and are involved in a wide variety of functions, including absorption, secretion, cellular adhesion, and mechanotransduction. 1 Locations.
When youâre experiencing back knee pain, the cause of the problem may be due to a condition known as a Bakerâs cyst. When the back knee pain is associated with a Bakerâs cyst, it isnât a cyst in the usual sense. Itâs a popliteal cyst. What this means is that fluid is present in the joint at the back of the knee.
Most characteristic is groin pain, buttock and posterior pain can indicate a spine problem; thigh and anterior pain could be due to a soft-tissue disorder as well as the hip. There are two general kinds of knee problems: mechanical (e.g., from injury) and inflammatory (e.g., from arthritis).nee pain when kneeling on floor. Swelling between kneecap and skin. BAKER'S CYST: Pain and swelling at back of knee. If cyst ruptures, pain in back of knee can travel down the calf. DISLOCATION OF KNEECAP: Pain, tenderness and swelling of knee possibly resulting from sports injury.