Why can mosquito mouths penetrate human skin tissue and suck blood?

The mouth of the mosquito is very fine, although it looks nothing unusual to the naked eye, but it has a structure similar to a saw and a knife, which can cut the human body**, and because of the characteristics of mosquitoes when they suck blood, many diseases are mosquitoes as the main source of infection.

The mouth of the mosquito, formally called the mouthparts, is a subtle but delicate structure, and it has gradually become what it is today due to factors such as competition for survival over a long period of evolution. The mouthparts of the mosquito have multiple structures, you can take a look at the specific ones, there are similar sawtooth-like structures, there are also tube-like structures, sawtooth blade-like structures, that is, constantly cut the human body**, and then the "straw" in the mouthparts will continue to go deeper along the cut out, and constantly explore the capillaries existing in the tissue, that is, insert the straw into the tissue, find the blood vessels to suck blood, and if you can't find the blood vessels, you will draw some out, and then repeat the above steps.

Because it is a "blunt knife pulling meat", it will feel itchy when the mosquito first bites, and will inject some substances to prevent blood clotting, and the blood will seep out along the broken blood vessel wall under the action of blood pressure, and the pressure of mosquito sucking blood is much less. When mosquitoes start sucking blood, people feel better, and mosquitoes are very greedy, and sometimes they can't fly when they suck blood.

Due to the blood-sucking method of mosquitoes, when cutting ** and injecting some substances produced in the mosquitoes, some bacteria and viruses carried by mosquitoes will also enter the human body along the damage caused by mosquitoes, so that many diseases are mosquitoes as vectors, such as dengue fever, malaria and other diseases, and the number of deaths caused by mosquitoes may even exceed the number of deaths caused by malignant tumors.

However, scientists are already working on ways to drastically reduce mosquito populations, which is to use genetic engineering technology to breed male mosquitoes that carry certain diseases and combine them with female mosquitoes in the wild, making it difficult for female mosquitoes to produce hatchable mosquito eggs. But at the moment, it doesn't seem to be working yet.

There are six small spines in the mosquito's mouthpiece, and these stinging mosquitoes can easily pierce humans** and thus suck human blood. Mosquitoes release chemicals when they suck blood, and these chemicals prevent the body's blood from clotting.

Because the mouth of a mosquito is very long and thin, it can easily penetrate human cells, so the mouth of a mosquito can penetrate human ** tissue and suck blood.

Because the structure of the mosquito's mouth is very complex, and it is also very systematic, and to a certain extent, it is very hard, so it can enter the human tissue to suck blood.

There is a kind of powder on the body of the mosquito that is very similar to the butterfly, and you use a lot of force when you slap the mosquito, and directly slap the mosquito to death, so there will be melanin powder on the mosquito on your hand, and you can't find out what the effect is.

Mosquitoes are widely distributed and have many species, and so far there have been 3 subfamilies (Macropheles subfamily, Anopheles subfamily, Culex subfamily), 35 genera, and more than 3,600 species and subspecies of mosquitoes recorded in the world. More than 370 species have been discovered in China, of which more than half are mosquito species of the three genera Anopheles, Culex mosquitoes and Aedes mosquitoes.

Habitat habits. Understanding the habitat habits of mosquitoes is the basis for formulating mosquito control measures.

Generally speaking, mosquitoes like to inhabit in hidden, dark and poorly ventilated places, such as under the bed, behind the cabinet, behind the door, in the crack of the wall, the barn, the basement, etc., and the outdoor is mostly in the grass, cave, cellar, bridge hole, stone crevice, etc.

According to the habitual habits of the mosquitoes after sucking blood, they are divided into the following three types: domesticated type: such as Anopheles microphyllum and Anopheles humaniphile.

Semi-domestic type: such as Anopheles sinensis and Anopheles sunpond, some indoors after sucking blood, and some inhabit outdoors. Wild type:

For example, Anopheles albopictus and Aedes albopictus have to fly outside to digest the blood in the stomach after sucking blood.

The mosquito's straw is soft, so why can it suck human blood?

The mouth of the mosquito is called the mouthpart, which is composed of 6 mouth needles: 1 on the upper lip, 2 on the upper jaw, 2 on the lower jaw and 1 on the tongue. These 6 needles are located in the longitudinal groove of the lower lip.

Look at how mosquitoes suck blood, when the female mosquito sucks blood, the lower lip is bent back first, and the needle cluster is held with the end lip flap, and the lower jaw is stung into the ** first, and then the other mouth needles are stretched into the blood vessels to suck blood. The mouth needle of the male mosquito is degenerated, and its jaw is short and weak, and it cannot sting into the human **, so the male mosquito generally cannot suck blood.

Mosquitoes can't open their mouths, so they won't take a bite on the **, it actually uses 6 needle-like structures to pierce people**, these short needles are the center of the mosquito's mouthparts, and the function of these short needles to suck human blood is like a needle used to draw blood; The mosquito also releases saliva containing anticoagulants to prevent blood from clotting, so that it can feast peacefully. When the mosquitoes are full of food and drink and float away, all they leave behind is an itchy lump.

Not all mosquitoes suck blood, only female mosquitoes suck blood, and as for why, I think it should be nutrient.

It's a needle. And it does not suck out the blood. It should be said. It's it that pierced us. Then the blood spontaneously flowed into its mouth.

There is a straw, similar to the principle of a syringe.

The needle is hollow, so it can be sucked.

Narcotic toxins are released when blood is sucked with a siphon mouthtester.