Fissure filling is a treatment that improves the apparent clarity of a gemstone by removing air and replacing it with a substance that has a refractive index similar to the host material. Many different substances may be used to fill fissures: oils, resins, waxes, glass, and various polymers, to name a few.
Cerebral autoregulation is a process in mammals, which aims to maintain adequate and stable cerebral blood flow.hile most systems of the body show some degree of autoregulation, the brain is very sensitive to over-and underperfusion. Cerebral autoregulation plays an important role in maintaining an appropriate blood flow to that region.
The human cerebellum also known as the Little Brain is situated just above the brain stem and toward the back of the brain. It plays an important role in the motor control.The cerebellum does not initiate movement, but it contributes to coordination and precision, when it receives inputs from the spinal cord and from other parts of the brain, and integrates these inputs to fine tune motor activity.t plays an important role in the motor control. The cerebellum does not initiate movement, but it contributes to coordination and precision, when it receives inputs from the spinal cord and from other parts of the brain, and integrates these inputs to fine tune motor activity.