The Link Bracelet in space gray black stainless steel brings the price to $1,049 (Â£899, AU$1,549) and $1,099 (Â£949, AU$1,629) for the two sizes. The Link Bracelet alone in silver stainless steel costs $449 (Â£379, AU$679), which is more money than the entry-level Apple Watch Sport with the rubber Sport Band.
They are composed of three membranes, called the pia mater, the arachnoid mater and the dura mater. Each layer of the meninges is a continuous layer, covering the entire brain and spinal cord.The pia mater is the innermost membrane and is the most delicate of the three layers. It also is the most closely fitting, running smoothly over the spinal cord and brain, following the contours of their surfaces.Within the pia mater is a network of capillaries that supply blood to the brain and spinal cord.hey are composed of three membranes, called the pia mater, the arachnoid mater and the dura mater. Each layer of the meninges is a continuous layer, covering the entire brain and spinal cord.
Brain and spinal cord are surrounded by membranes called the meninges. There are three layers - outermost dura mater, middle arachnoid and the inner pia mater. The space between the arachnoid and pia mater is filled with the cerebrospinal fluid (CSF). It acts as a shock absorber. An infection of the meninges is called meningitis.