The arachnoid mater covering the brain is referred to as the arachnoidea encephali, and the portion covering the spinal cord as the arachnoidea spinalis.. The arachnoid and pia mater are sometimes considered as a single structure, the leptomeninx, or the plural version, leptomeninges. (Lepto- from the Greek root meaning thin). Similarly, the dura in this situation is called the pachymeninx.
Sweaty Hands Excessively sweaty hands are caused by the condition known as hyperhidrosis. Palmer (palm of the hand) hyperhidrosis is caused by a hyperactive sympathetic nervous system causing sweat glands in the hands to produce an excessive quantity of sweat.
In infectious tenosynovitis of non-gonococcal type, signs of injury or bite may be noticed. Tenosynovitis of fingers, possibly due to overuse can lead to flexion of the finger, which can appear as if the finger is locked in the flexed position and is then suddenly released. This can be a trigger finger and in extreme cases the locked finger may have to be released by manipulation.