nerve tissue (nervous tissue) the specialized tissue forming the elements of the nervous system. osseous tissue the specialized tissue forming the bones. reticular tissue (reticulated tissue) connective tissue composed predominantly of reticulum cells and reticular fibers.scar tissue cicatricial tissue.erve tissue (nervous tissue) the specialized tissue forming the elements of the nervous system. osseous tissue the specialized tissue forming the bones. reticular tissue (reticulated tissue) connective tissue composed predominantly of reticulum cells and reticular fibers.
Dark yellow urine is a sign of dehydration. Your urine is dark because your kidneys are doing what they are supposed to do when you are dehydrated: conserving water by making less urine. If this is the case, drink more water â eight 8-ounce glasses each day.
The most common color of urine is yellow, which is caused by the presence of urobilin, a biochemical waste product generated from the breakdown of old red blood cells. (Your body makes about 2 million new red blood cells every day, and recycles an equal number of old ones.)