The emotions of many viewers have completely lost control.

In their lives, they have only been so intimate with cats and dogs.

Who has nothing to hang a snake around his neck, let alone a highly venomous snake, this snake is still very short-tempered.

The new audience at station B felt that the anchor must be crazy, and fell into two emotions: puzzled and shocked.

Liu Wei looked at the barrage and smiled, "Brothers, don't be too excited, it's actually very gentle, I seem to have a ribbon around it, and I can feel the coolness around my neck, it's very comfortable at the current temperature, why don't you try it?"

"Get out!"

"Get out!"

"Try a hammer!"

"I haven't found a daughter-in-law yet!"

The audience looked disgusted.

Everyone knows that Liu Wei is joking, not to mention that there is no distribution of western cobras in China, and a normal person's brain will definitely not learn from Liu Wei to try this kind of deadly behavior.

"Hahaha, just kidding, it's necessary to remind, non-professionals, don't imitate!" Liu Wei smiled, "The most important reason why I want to control its head is to show everyone its venom and see why this cobra boss can rank among the top ten deadly poisonous snakes in the world!"

After speaking, Liu Wei took out a professional poison cup from his backpack.

Adjust the live footage.

Focus!

Make sure that the audience can clearly see the moment when the western cobra bites.

In his left hand, he holds a poison cup.

The right hand pressed a little more force against the head of the western cobra, its upper and lower jaws staggered a little.

Just as Liu Wei sent its head to the mouth of the poison cup, it bit through the membrane and swung its head vigorously.

Liu Wei was rigidly restrained.

Venom flows out from the transparent cup walls.

The western cobra does not excrete much venom at one time.

Liu Wei's palm could feel the intensity of its struggle, and it was indeed very uncomfortable.

“ok!”

Liu Wei retracted a little force and removed the snake's head from the mouth of the cup.

Then he took out the intelligent snake controller provided by the system from his backpack and put the western cobra on the snake controller, so that he didn't have to worry about being attacked by the snake when he was teaching the audience about the venom.

Liu Wei shook the poison cup at the sun, and smiled with satisfaction, "Brothers, have you seen it?

Now it's my turn to prove it!

There should be a lot of poisonous snake riddles in the live broadcast room, and if you have read the relevant information about the world venomous snake rankings, you will find a problem, there is a difference in the ranking of the western cobra in the top ten.

Some of the data shows that they are ranked higher, some are lower, and some are exactly ranked tenth!"

"I've seen some up popular science about snakes, and it seems to be ranked tenth!"

"The Baidu Encyclopedia I read seems to be the eighth!"

"I've seen one ranked sixth, it's too high, it doesn't feel very reliable!"

As Liu Wei expected, the answers given by snake fans in the live broadcast room are not uniform.

He popularized science, "When it comes to the toxicity of venom of poisonous snakes, let's first recall a cliché standard, LD50 value, that is, half of the lethal dose.

This standard has been mentioned before, and I have not given you a detailed description of the measurement method of LD50 value, so I will add it today.

We must be clear about a common sense, the poison of the same snake will vary due to many factors such as environment, gender, age, food intake, etc., just like the venom in the poison cup in my hand now, in such a harsh environment, the venom will be quickly destroyed, and snake venom is not easy to keep in the cup outdoors.

From this, we can deduce that the LD50 will have different test results.

We all know that the common test subjects are mice, and the default subject of toxicity experiments is mice.

There are four common injection modes, namely meridian injection, abdominal fixation, intramuscular injection and subcutaneous injection, when comparing all venomous snake poison, it can only be compared in the same injection mode, the current industry-recognized injection mode is subcutaneous injection, because the closest to the real bite, the venomous snake's fangs release venom by biting through the muscle layer.

You should be able to understand what I say!"

"OK!

"Who do you look down on?

"I can barely understand it!"

"Ah Wei, you speak directly!"

"Good!" Liu Wei nodded, "After subcutaneous injection, the LD50 value is compared, and the half lethal dose of the western cobra is 0473g/kg, ranking exactly tenth."

Therefore, the snake science video you see on station b is relatively professional, and I personally prefer the mainstream views in the industry. ”

The audience unanimously played a barrage in favor.

They believe in Liu Wei's professionalism.

The main thing is the face-to-face contact with the western cobra of live science popularization, which is several times stronger than the perception of those who play videos and ppt science popularization, which can very well reflect Liu Wei's professionalism.

Liu Wei looked back at a western cobra wrapped around the snake controller, his temper was a little tightened, and he gradually calmed down.

Turning around, he said, "After talking about the rankings, let's talk about the harm caused by the western cobra venom to the human body, everyone listen carefully, maybe we can use it in times of crisis."

When the western cobra attacks, it has a habit that it will not expel its venom at one time, and it should be said that many venomous snakes of the cobra subfamily will keep a hand and wait and see what happens.

When it bites into its body, only half of the venom is injected into its body, meaning that the other half may be its saliva or bacteria in its mouth. ”

"Hahaha, saliva, laughing at me!"

"I'm not afraid of saliva, I have it too!"

"Come on, cobra, let's spit on each other!"

"The anchor's description is so funny, I laugh to death!"

"The effect of the show, the effect of the show!", Liu Wei smiled, and then said seriously, "So for the power of the wound, it is lighter than after many other poisonous snake bites."

But you must not take it lightly, you must pay attention to it and receive treatment as soon as possible.

As we have said, the venomous snakes of the cobra family basically belong to the anterior groove tooth viper, the amount of toxin excreted is relatively small compared to the dentistry, the toxin of the venom is mainly neurotoxin, and the same is true of the venom toxin of the western cobra, and it also contains a certain amount of cardiotoxin.

But the most terrifying thing about its venom is that the snake venom injected into the body can cause symptoms of blood clotting depletion.

Coagulation refers to the ability of the process of changing blood from a flowing state to a non-flowing gel state, which is essentially the function of converting soluble fibrinogen in plasma into insoluble fibrin.

This is also the main reason why the western cobra is listed as a deadly venomous snake, and the mortality rate is high once the victim develops coagulation abnormalities.

In addition, after being bitten by a western cobra, there may be abdominal pain, breathing disorders, difficulty swallowing, cramps, drooping eyelids, hemolytic reactions, and myocardial tightness.

These are all routine symptoms after being bitten by a cobra, and remember, it must be treated promptly!"

"Understand, understand!"

"Written down, written down!"

"Anyway, just hit 120!"

“......”

。