Zanimljivost o komarcima – doktor objasnio zašto rijetko osjetimo ubod

Glavni uzrok navale komaraca su padaline i temperature, takvi uvjeti imaju utjecaj na njihovo preživljavanje i sposobnost razmnožavanja. Uživanje u ljetnim mjesecima nas često asocira na ubode, svrabe i neumorno zujanje oko glave.

Iako vjerojatno ne postoji osoba koja nije doživjela ubod komarca, ponekad vam se čini da vas komarci napadaju puno češće nego druge ljude koji se nalaze oko vas. Razlog tome može biti i vaša krvna grupa, a to su potvrdila i razna istraživanja provedena kroz dugi niz godina. No, zanimljiva je činjenica da ljudi zapravo rijetko kada osjete ubod komarca, a doktor Sermed Mezher je naTikToku objasnio i zašto.

 

@drsermedmezher Do You Know How Technical a Mosquito Bite is? #nature A mosquito bite may seem like a simple encounter, but from a technical standpoint, it involves a series of intricate processes. When a mosquito lands on the skin and pierces it with its proboscis, several remarkable mechanisms come into play. First, the mosquito's saliva contains compounds that act as local anesthetics and anticoagulants. The anesthetics numb the area, ensuring that the bite goes unnoticed, while the anticoagulants prevent blood from clotting, allowing the mosquito to feed freely. As the mosquito probes for blood vessels, it employs specialized sensors to detect the body's heat and the carbon dioxide we exhale, helping it locate capillaries close to the skin's surface. The proboscis, which consists of multiple components, penetrates the skin delicately, avoiding nerves and blood vessels while reaching the target vessels. During feeding, the mosquito's saliva enters the skin, triggering an immune response from our body. This immune response leads to the characteristic itchy, swollen bump commonly associated with mosquito bites. Interestingly, mosquitoes have evolved an extraordinary ability to find blood vessels and withdraw blood without causing significant damage or discomfort. Their feeding technique involves a combination of chemical cues, sensory perception, and a complex proboscis structure, all working in harmony to facilitate their meal. #MosquitoBite #Proboscis #Saliva #Anesthetics #Anticoagulants #Sensors #BloodVessels #ImmuneResponse #Itchiness #Swelling #FeedingTechnique #CarbonDioxide #IntricateProcesses #MosquitoControl #MosquitoBorneDiseases #TechnicalAspects #Research #Prevention #MosquitoSensors #Innovation #doctor #medicine #healthcare #interesting #interestingfacts #interestingthings #interestingvideos #healthcare #fypシ ♬ Suspense, horror, piano and music box - takaya

 

Razlog tome je što slina komarca ima sličnu kvalitetu kao anestetik. U videozapisu je objasnio: „Ubodom insekta počinje ubrizgavanje lokalnog anestetika u kožu, tako da ga nećete osjetiti. U kožu ulazi šest igala, od čega jedna probija kožu, a druga otkriva i pije krv iz krvnih žila.“

Ustvari, nekada prođu minute pa čak i sati, dok ne osjetimo ubod komarca. Proces uboda je toliko učinkovit da će komarac i nestati u trenutku kada čovjek primijeti što se ustvari dogodilo. Grizu nas samo ženke koje trebaju dodatnu hranu za svoje mlade i to na taj način da slijede oblake bogate ugljikovim dioksidom koji izdišemo.