Chapter 261
Known: [See through Invisibility] can see the spiritual light of living beings.
Question: What is the spiritual light of life?
As he approached the answer, Garrett beca calr instead. The next verification work required sufficiently refined prerequisites — even with complete prerequisites, many newly-minted students experienced experint failures, experint failures, experint failures...
Garrett cald down and began manipulating scales, pipettes, beakers, and flasks. Preparing Renshi’s solution, he welded zinc and copper plates together to make a zinc-copper bow. Hmm, magic made things much easier; he heated them until they softened, directly joined them together, and then cooled them down... Done!
Perfect!
Then, Garrett began preparing frogs, nailing them to wooden boards, destroying their brains and spinal cords, and cutting off the upper half of their bodies... Completing the sciatic nerve-gastrocnemius muscle specin. The laboratory was bloody, barbaric enough to make barbarians grimace, but Garrett remained impassive throughout, even showing so excitent.
Just kidding, even though dical students weren’t as accustod to dissections as their biology colleagues, they had dissected dozens of frogs, mice, cats, and dogs, so who would fear such scenes!
And throughout, Garrett even maintained his ditation, not being swayed by emotional fluctuations. Under the [See through Invisibility], the spiritual light of life silently flickered and quietly fell into the ditative field of view.
What excited Garrett was that even with only a piece of spine and frog legs remaining, a faint spiritual light could still be seen in his ditative vision.
So...
Zinc-copper bow, dipped in Renshi’s solution, stimulating the sciatic nerve!
The mont the tal pieces touched each end, the frog’s gastrocnemius muscle contracted violently. At the sa ti, the spiritual light in Garrett’s ditative vision visibly jumped up!
Correct!
The magic [See through Invisibility], seeing the spiritual light, was most likely the bioelectricity of organisms!
Then...
What is the chanism of action of [Alleviate Pain]?
Garrett recalled the content from the "Physiology" textbook. The principle of human feeling pain is divided into three steps:
When the body is damaged or inflad, damaged cells release pain-inducing substances, such as inorganic salts like potassium, hydrogen, calcium ions, amines like serotonin, histamine, prostaglandins, and so on. For example, a large proportion of dysnorrhea is caused by prostaglandins. Taking ibuprofen in advance can inhibit the production of prostaglandins, achieving analgesic effects;
When nerve endings are stimulated by exogenous pain-inducing substances or activated by endogenous pain-inducing substances, receptor potentials are generated, which then trigger conductive action potentials to transmit the damage information along the nerves to the brain. As can be seen, this process involves bioelectricity;
The cerebral cortex integrates the pain information, and finally, the body feels the signal of "pain" —
So, at which step does [Alleviate Pain] work?
Garrett decided to do another experint. This ti, following Mada Syatt’s guidance, he narrowed down the range of action of [Alleviate Pain], narrowing it down, and narrowing it down again.
In the spell model of [Alleviate Pain], the structure determining the casting coverage is a structure sowhat like an hourglass. Neither end is a standard cone, but slightly twisted and coiled, with undulating patterns, sowhat like ice cream on top of a cone.
For Garrett, who had experience in constructing ditative shells, this kind of spell model was not too difficult. Isn’t it just twisting and turning, patterns? Everything, everything, is a mathematical problem!
After calculations, building function models, adjusting paraters, a series of steps, he had already narrowed down the range of magic’s effect from covering the entire body to the size of a bowl.
To narrow it down further, it wasn’t that the paraters couldn’t be adjusted, but that Garrett’s ntal power and spell control couldn’t support it...
Garrett took another frog, nailed it to a board, and cut the skin on its leg with a knife. [See through Invisibility]! [Alleviate Pain], target, frog’s head!
In his ditative vision, the spiritual light fluctuations in the frog’s head decreased and softened, while the fluctuations in its legs remained strong. Was it that it couldn’t feel pain anymore, but the limbs were still twitching involuntarily? It’s a pity that he never learned the part of soothing animals in natural god’s teachings; he couldn’t connect with the animal’s perception. If it were Reverend Matthew here, it would be better...
Garrett thought for a mont, canceled the spell, and threw the second [Alleviate Pain] to the frog’s legs. This ti, in his ditative vision, the spiritual light in the frog’s legs cald down, while the light in its head remained calm. There was no choice; Garrett used the traditional fixed thod, nailing the frog’s four feet with nails, and it hurt.
Hmm, so it ans that the [Alleviate Pain] spell can at least suppress so of the sensory nerve’s bioelectric conduction within the range of the spell’s coverage...
Then, if the nerves are suppressed, is it possible that after cutting off the nerve response, the sensation of pain in the terminal limbs will no longer be transmitted to the brain?
Garrett impulsively threw a spell onto his thigh. Then, he bent down and pinched his calf hard.
It really didn’t hurt!
Garrett continued to split the spell model. In this spell, the part that determines the nature of the spell resembles a flower, and underneath the flower are nurous coiled roots. Garrett tried omitting the part of the roots, casting the spell again...
The frog struggled violently. However, when the spell was thrown to the frog’s head, the frog imdiately cald down, and the spiritual light in its head also beca gentle, with no more violent fluctuations. And by omitting the flower part and directly outlining the roots, casting again—
Effective on the limbs, ineffective on the head!
Interesting. Garrett’s eyes glead, recording quickly. So the "flower" part controlled the central nervous system, making the brain unable to recognize pain, while the "roots" part suppressed sensory nerves, inhibiting bioelectric conduction?
This chanism is very interesting!
Moreover, after splitting and narrowing the range of the spell’s coverage, the magical power consud by this magic directly reduced from second-order magic to first-order magic. Such changes were certainly not very useful in combat. The smaller the coverage area, the lower the likelihood of hitting the target. If there were multiple wounds on the body, it would be even more impractical — it blocks here but not there...
But in dical treatnt, it would be very useful!
Local anesthesia!
If local anesthesia is possible, why use general anesthesia!
If spinal anesthesia is possible, there’s no need for general anesthesia!
Wasting anesthetic, no, wasting magical power, and also affecting the patient’s recovery!
Tomorrow, yes, tomorrow, go to the clinic and give it a try! If there are no suitable patients in the clinic, he can go to the dock, to the fleet. There, the porters and soldiers are often involved in bumps and scrapes, so he should find an opportunity!
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