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.
Sweaty Feet â Causes, Prevention & Treatment. Sweating is our bodyâs natural way of cooling itself down. Sweaty feet, or hyperhidrosis, is a common condition that causes excessive sweating on the soles of the feet. The condition also affects the palms of the hands and the underarms, but in this article we will focus only on the feet. Plantar hyperhidrosis is localized to the plantar side of the foot (the bottom).