In the nerves, due to their great sensitivity and their connection with the brain, very severe pain and very severe suffering arise from wounds, leading to spasms and clouding of the mind. Often it comes to spasms without previous severe pain, and it is impossible to avoid the formation of a large tumor without severe pain. In the mildest cases, when a nerve is injured, there are fevers and numerous tumors not in the place where the wound is located; thirst, insomnia and dry tongue are also observed, especially if a tumor has formed there; this also happens with injuries to the tendons of the muscles, especially towards their ends. When a nerve or something similar to it swells or is affected by cold, then spasms arise in it, and if it is affected by putrefaction, then the organ rots and swells. Decay rushes to the nerves, since they are created from moisture, which the cold has forced to thicken and harden, and rottenness also rushes to them under the influence of humidity and moist warmth, and putrefactive matter is, as it were, welded in the nerve. Therefore, cold liquids harm the nerves by causing spasms, and hot liquids cause them to rot; oil also acts on them, but warming oil is sometimes necessary to soothe pain or to make medicines thin and flowing, and the medicines counteract the moisturizing quality of the oil, often penetrating medicine itself produces this effect.
Sometimes the wounded nerve swells, but the appearance of the tumor is slow, as is its maturation and responsiveness to treatment, and sometimes the nerve ulcerates and the ulcer is slow to heal and slow to mature.
Every wound that occurs on a nerve is either a puncture or an incision; the incision occurs either with exposure of the nerve or without exposure. All such wounds are either longitudinal or transverse; a wound running longitudinally along the nerve is safer than one running transversely, because healthy fibers hurt and are irritated due to the proximity of cut fibers, and the irritation reaches the brain and causes spasms and terrible diseases. In this case, we are also often forced to completely cut out the cut or punctured nerve, and then the pain calms down and the bad phenomena go away.
Injuries to the membranes are easier to treat than injuries to tendons, and especially nerves. You recognize the membranes by their appearance and from what you know from anatomy; moreover, the membrane is continuous and the passages of longitudinal fibers are not visible in it, but in the membranous tendon the passages of longitudinal fibers are visible. The membranous tendon is very hard, but the sheath is not so hard, and the sheath can be sutured.
There is nothing particularly bad about injuries and ruptures that occur in the fixed ligaments running from bone to bone, and they can withstand the most severe treatment; rupture of a nerve at the ends is not as terrible as crushing or a longitudinal incision of part of it, although when ruptured, the organ becomes chronically ill .