See blood seal throat? Can save people as well! See what effect and effect does blood seal throat (arrow poison wood) have?

There is indeed a kind of tree species in the world called seeing blood to seal throat, which is known as "the most poisonous plant". It is also called arrow poison wood, because the white milk sweat from its trunk is highly poisonous, and ethnic minorities in Xishuangbanna are used to paint arrowheads to hunt animals. It got its name after being shot. So what are the effects and functions of him?

1. Brief introduction

Arrow poison wood is a national third-class protected plant, it is a highly toxic plant and medicinal plant. The milky juice of Arrow venom wood is highly poisonous. once it comes into contact with human and animal wounds, it can paralyze the heart (caused by arrhythmia), seal blood vessels, clot blood, and even suffocate to death, so people call it "seeing blood to seal the throat". Distributed in Guangdong (Leizhou Peninsula), Hainan, Guangxi, southern Yunnan. Sri Lanka, India (including Andaman Islands), Myanmar, Thailand, Indo-China Peninsula, Malaysia, Indonesia.

two。 Efficacy and function

Daily use:

See blood seal throat bark is very thick, rich in slender and flexible fibers. Ethnic minorities in Xishuangbanna, Yunnan Province often skillfully use it to make mattresses, clothes or tube skirts. Take a section of the trunk of suitable length and beat it evenly with a small stick. When the bark is separated from the wood layer, remove the whole piece of bark like a snake, or cut it open with a knife to peel off the whole piece, then soak it in water for a month or so, and then wash it while beating in clean water. Remove the venom and glue in this way, and then dry it to get a white, thick, soft fiber layer. The mattress on the bed made of it is both comfortable and durable, and it also has good elasticity after sleeping for decades; the clothes or tube skirts made with it are both soft and warm, and are deeply loved by local residents.

Pharmacological action:

Cardiotonic effect: it can be seen that the ethanol extract of throat milk can strengthen heart, increase blood pressure and increase cardiac output. Among the glycosides contained in this product, many of them have digitalis-like cardiotonic effects, such as injection of 0.05mg into frog lymphatic sac can make the heart stop in systole, and cause ECG changes similar to those of flavonoids in cats, such as slower heartbeat, prolonged Pmurr interval, ectopic rhythm, tachycardia and finally ventricular fibrillation. The minimum lethal dose (mg/kg) for cats was α-phleboside 0.116, β-glucoside 0.102, α-guluoside 0.142, rhamnoside 0.125, malayoside 0.107, laryngoside 0.122, galactoside 0.118, galactoside 0.138, and laryngogenin 0.359.

3. Place of Origin

Arrow poison trees are mainly distributed in Guangdong (Leizhou Peninsula), Hainan, Guangxi, southern Yunnan, Sri Lanka, India (including Andaman Islands), Myanmar, Thailand, Indo-China Peninsula, Malaysia, Indonesia (Sumatra, Java, Kalimantan, Sulawesi). The varieties are distributed in Oceania and Africa.

4. Habit

It can be seen that the blood seal throat is mostly born in tropical monsoon rain forest and rain forest, with rich heat, long summer and no winter, and the influence of cold wave in winter is weak. The annual average temperature is 21-24 ℃, the coldest monthly average temperature is above 13-17 ℃, and the extreme lowest temperature is above 0-5 ℃. In the year when the cold wave invades southward from southwestern Guangxi to western Guangdong, there may be a short low temperature below 0 ℃, annual rainfall of 1200-2000 mm, distinct or not distinct in wet season, and high air humidity. The annual average relative humidity is above 80%. On acidic bedrock such as granite, shale, sandstone and Quaternary laterite, the soil is latosol or laterite with a pH value of 6.8-7.7. It can be seen that the blood-sealed throat can form a giant tree in the upper layer of the seasonal rainforest, often tall and straight above the main canopy. In the coastal platform with developed root system, strong wind resistance and frequent wind disasters, isolated trees are not easy to be toppled by wind, but their growth is often shorter.