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.
Fine movements in a tiny area of muscle in your fingers are called finger twitching. Common symptoms that are often present in addition to the twitching are numbness and tingling. When the twitching only occurs once in awhile, it is considered quite normal and it is usually just ignored. Side Effects â Certain drugs such as diuretics, corticosteroids and estrogen are often causes of twitching in your fingers. 2  Caffeine â It is reported that too much caffeine or withdrawals of caffeine can cause muscle twitching. 3  This includes coffee, soda and chocolate.