How Mosquitoes Use Six Needles to Suck Your Blood | Deep Look

  • تم نشره في 2016/06/ 7
  • Support Deep Look on Patreon!!
    🎇 2017 WEBBY PEOPLE'S VOICE WINNER 🎇 for Best Science & Education Video 📹 !
    Seen up close, the anatomy of a mosquito bite is terrifying. The most dangerous animal in the world uses six needle-like mouthparts to saw into our skin, tap a blood vessel and sometimes leave a dangerous parting gift.
    SUBSCRIBE to Deep Look!
    DEEP LOOK is a ultra-HD (4K) short video series created by KQED San Francisco and presented by PBS Digital Studios. Explore big scientific mysteries by going incredibly small.
    Scientists have discovered that the mosquito’s mouth, called a proboscis isn’t just one tiny spear. It’s a sophisticated system of thin needles, each of which pierces the skin, finds blood vessels and makes it easy for mosquitoes to suck blood out of them.
    Male mosquitoes don’t bite us, but when a female mosquito pierces the skin, a flexible lip-like sheath called the labium scrolls up and stays outside as she pushes in six needle-like parts that scientists refer to as stylets.
    Two of these needles, called maxillae, have tiny teeth. The mosquito uses them to saw through the skin. They’re so sharp you can barely feel the mosquito biting you.
    “They’re like drill bits,” said University of California, Davis, biochemist Walter Leal.
    Another set of needles, the mandibles, hold tissues apart while the mosquito works.
    Then the sharp-tipped labrum needle probes under the skin, piercing a vessel and sucking blood from it.
    The sixth needle - called the hypopharynx - drools saliva into us, and delivers chemicals that keep our blood flowing. Mosquito saliva also makes our blood vessels dilate, blocks our immune response and lubricates the proboscis. It causes us to develop itchy welts, and serves as a conduit for dangerous viruses and parasites.
    ---+ Read the entire article on KQED Science:
    ---+ What is the deadliest animal in the world?
    Mosquitoes are the deadliest animals in the world to us humans. The diseases they transmit kill hundreds of thousands of people each year.

    ---+ How many people get malaria each year?
    In 2015, malaria, the deadliest mosquito-borne disease, killed roughly 635,000 people, mostly children under the age of five and pregnant women in sub-Saharan Africa.
    ---+ What diseases do mosquitoes transmit?
    Malaria, dengue, yellow fever, West Nile and Zika are some of the diseases that mosquitoes transmit.
    Dengue fever, transmitted Aedes aegypti mosquitoes, is estimated to make almost 400 million people sick with jabbing joint pain each year.
    Scientists also believe that Aedes aegypti mosquitoes are the main culprit for more than 350 confirmed cases of congenital malformations associated with the Zika virus in the northeastern Brazilian state of Pernambuco. Since last October, an unusually high number of babies have been born there with small heads and a host of health problems like convulsions, suspected of being caused by a Zika virus infection early in their mother’s pregnancy.
    ---+ What diseases can I get from mosquitoes in the United States?
    West Nile virus is the most important of several mosquito-transmitted viruses now native to the U.S., according to the Centers for Disease Control.
    ---+ More Great Deep Look episodes:
    The Bombardier Beetle And Its Crazy Chemical Cannonفيديو.html
    --- See also this new Zika video from PBS Digital Studios:
    Should You Be Worried About Zika? | It's Okay to Be Smartفيديو.html
    ---+ About KQED
    KQED, an NPR and PBS affiliate in San Francisco, CA, serves Northern California and beyond with a public-supported alternative to commercial TV, Radio and web media.
    Funding for Deep Look is provided in part by PBS Digital Studios and the John S. and James L. Knight Foundation. Deep Look is a project of KQED Science, which is also supported by HopeLab, the David B. Gold Foundation, the S. D. Bechtel, Jr. Foundation, the Dirk and Charlene Kabcenell Foundation, the Vadasz Family Foundation, the Gordon and Betty Moore Foundation, the Smart Family Foundation and the members of KQED.
    Video of mosquito labrum probing under mouse skin from:
    Choumet V, Attout T, Chartier L, Khun H, Sautereau J, et al. (2012) Visualizing Non Infectious and Infectious Anopheles gambiae Blood Feedings in Naïve and Saliva-Immunized Mice. PLoS ONE 7(12): e50464. doi:10.1371/journal.pone.0050464 .
    Used under the terms of:
    Animations based on drawing in Choo Y-M, Buss GK, Tan K and Leal WS (2015) Multitasking roles of mosquito labrum in oviposition and blood feeding. Front. Physiol. 6:306. doi: 10.3389/fphys.2015.00306
    Used under the terms of:
    #deeplook #mosquito #mosquitobite
  • علوم وتكنولوجياعلوم وتكنولوجيا

تعليقات • 13 361

  • Star Puppy
    Star Puppy 6 ساعات قبل

    Next up the love bug. The bug that should have eaten mosquitos but end up causing more trouble!

  • Craneface
    Craneface 6 ساعات قبل

    Anyone else looking at this while hunting misquotes late at night?

  • yodvworld ghuman
    yodvworld ghuman 7 ساعات قبل

    so what do male mosquitoes eat or drink ??

    • Monsterkiller 418
      Monsterkiller 418 7 ساعات قبل

      yodvworld ghuman nectar, plant sap, and honeydew. Both male and female eat the same thing only female need blood.

  • Md. Muzambil
    Md. Muzambil 16 ساعات قبل

    Be it human or mosquito 🦟, females always sucking your blood.

  • kurwitz
    kurwitz 16 ساعات قبل

    me in africa going to italy would be like

    *Its a-me MALARIO*

  • Trends Na_Tion
    Trends Na_Tion 17 ساعات قبل +1

    Umm you said the deadliest animal you mean deadliest insect loololik

    • Deep Look
      Deep Look  16 ساعات قبل

      We mean what we said - all insects are in fact animals.

  • Bryce Moss AnimatesVEVO
    Bryce Moss AnimatesVEVO 18 ساعات قبل

    Everyday I see an bump on my body so I’m gonna die by mosquitos. I’m glad I didn’t die yet

    17,450,493 views 20 ساعات قبل

    Watching this with 5 bites im soooo mad!!!!!!!!

  • Ahed Mahmoud
    Ahed Mahmoud 21 ساعات قبل +1

    إن الله لا يستحي أن يضرب مثلا ما بعوضة فما فوقها

  • litzy m
    litzy m أيام قبل

    i feel bad for the person who had to have these mosquitoes on their skin

  • iinkt
    iinkt أيام قبل

    ew yesterday i got 17 mosquito bites

  • shawn grant
    shawn grant أيام قبل

    mosquito need blood to make babys thats magic.

  • guinea.pig.luver. 138
    guinea.pig.luver. 138 أيام قبل

    Jeez... Am I the only one here that looked up mosquito biting videos right after getting bitten?

  • small sized shaq
    small sized shaq أيام قبل

    That spotted one was in my dads car a while ago

  • Ahsen
    Ahsen أيام قبل

    Who watch this on the summer ?

  • Igor Kucharski
    Igor Kucharski أيام قبل

    in my home country there arent any but when i go on holiday to another there are like millions

  • Almabella Cagas
    Almabella Cagas أيام قبل


  • Pure Heart
    Pure Heart أيام قبل +1

    Ew MY WORST ENEMIES EVER! Last night they harmed me on 10 places

  • Hamster Girl
    Hamster Girl 2 أيام قبل

    Shout out to he guy/girl who let the mosquito suck there blood

  • Leeanna Lynx
    Leeanna Lynx 2 أيام قبل

    I wonder if it's still okay to hate mosquitoes.

  • Bibiana Carmen
    Bibiana Carmen 2 أيام قبل

    Mosquitoes 🦟 is a god creation from seventh heaven invisible but powerful.
    Mosquitoes can be avoided if ones resting place is tidy and clean 🧼 because according to my observation mosquitoes will live in forest 🌳 mostly and In garbages.

  • Wade Utai
    Wade Utai 2 أيام قبل

    This makes me hate mosquitos even more. Take my blood, leave me alone and take my babies and lastly spits on me just to fill her body up... sounds like my life with my ex-wife. Disgusting.

  • md aamir
    md aamir 2 أيام قبل

    maybe borewells are mosquitoes of earth 🤣🤣🤣

  • Shantanu
    Shantanu 3 أيام قبل

    I feel sorry for the guy who's letting mosquitoes bite him

  • Garrett Riley Sanchez
    Garrett Riley Sanchez 3 أيام قبل

    How did the guy has been biten by a mosquito survive

  • Ed S
    Ed S 3 أيام قبل

    When I catch one,I just remove its sucker/needle and set it free.

  • Jack Graham
    Jack Graham 3 أيام قبل

    I'm at Spain and there's,lots of moskitos and I'm 7 so I mite die

  • Aceplayz YT
    Aceplayz YT 3 أيام قبل

    Have you checked one of Daily Dose Of Internet's video?

  • ImKamilSkilsBlox
    ImKamilSkilsBlox 3 أيام قبل

    Töten bitte

  • Nf8hoang
    Nf8hoang 4 أيام قبل

    Can they like extinct now? Thanks

  • yash pandey
    yash pandey 4 أيام قبل

    Your subtitles ruins the depthness of the video.

  • wizard Noob gamer
    wizard Noob gamer 4 أيام قبل

    I can’t kill this mosquito that’s been in my room for like a year or 8 months

  • Mutombo Says
    Mutombo Says 4 أيام قبل

    Why am I here at 3 in the morning?

  • Kilian Rochowicz
    Kilian Rochowicz 5 أيام قبل

    Hate them

  • Hype Kg
    Hype Kg 5 أيام قبل

    Mosquitoes suck

  • Solo Noco
    Solo Noco 5 أيام قبل

    Remind me of my ex

  • Kris Tucker
    Kris Tucker 5 أيام قبل

    anyone else feelin scratchy after seeing this

  • Emmanuel Jones
    Emmanuel Jones 5 أيام قبل

    Nasty bloodsuckers! Ugh

  • Izel Z
    Izel Z 6 أيام قبل

    2:48 sometime we take there's correction sometime we take our blood back

  • Breezy Tyroné
    Breezy Tyroné 6 أيام قبل

    I can't wait for Winter

  • Fernand Marquet Fire Chicken
    Fernand Marquet Fire Chicken 6 أيام قبل

    I have encountered some of these before

  • Luiz Fernando
    Luiz Fernando 6 أيام قبل

    Argh I hate this little suckers

  • Brownskikuca
    Brownskikuca 6 أيام قبل

    Guys, there is always somebody willing to be bitten by disease carrying mosquitos, bedbugs leaches and others for every video of this kind

  • George Brailey
    George Brailey 6 أيام قبل +1

    I'll get the flamethrower

  • Henry's gaming channel
    Henry's gaming channel 7 أيام قبل

    Guys lets say thank you cuz people let mosquito suck there blood the hole time ok?

  • Wendy Butler
    Wendy Butler 8 أيام قبل

    Wait so y do the mosquitoes look different if they have a disease pls answer I’m so confused

  • CozyBear Gacha
    CozyBear Gacha 8 أيام قبل

    I have a mini pool for my little sister and she hasn't gone in it for like a month the water is still there and there are baby mosquitos in the pool

    Gross right

  • Layla is Awesome 2007
    Layla is Awesome 2007 8 أيام قبل

    Me and my grandpa caught one of the baby mosquitos, a boy and a girl, the baby girl was pregnant with another baby and the girl died I felt bad but after watching this video I don’t lol

  • Frost Rusher
    Frost Rusher 9 أيام قبل

    Second deadliest animal*
    The deadliest goes to humans with the biggest kill count on Earth.

  • Murder Sans
    Murder Sans 9 أيام قبل

    Y’all forgetting that these things also carry Bot fly eggs

  • Bread Master
    Bread Master 9 أيام قبل

    Huge respect for the person that volunteered to have a itchy bite for a week or so.

  • Bread Master
    Bread Master 9 أيام قبل

    I think mosquitos look cute ngl.

  • shad khandakar
    shad khandakar 9 أيام قبل

    I wish I had acid for blood

  • hina K
    hina K 9 أيام قبل

    the person who is letting the mosquito suck their skin for the documentary, your real one.

  • Natalia Contreras
    Natalia Contreras 10 أيام قبل

    my bites were so itchy my leg started bleeding :( I can’t help but scratch it

  • The Prankster Kids - Olivia the Horse

    If the female mosquitoes use our blood for their babies then we're a parent!!!

  • Ghost 22
    Ghost 22 10 أيام قبل

    Kill them!Kill them with fire💥

  • I'm U
    I'm U 10 أيام قبل +1

    Watch this mosquito sucking blood from my armفيديو.html

  • Pinksheep 624257. 846
    Pinksheep 624257. 846 10 أيام قبل

    In my holiday I’ve got stung by a mosquito in Thailand for many years to now

  • Thomas Torodo
    Thomas Torodo 11 أيام قبل

    I want to slap that mosquito so bad...

  • Melody Sunset
    Melody Sunset 11 أيام قبل

    1 like=10 times a misquote dies
    God I have bad spellings ;-;
    Mosquitoes be like:gimme all de blood!

  • Kimmy Will Oof
    Kimmy Will Oof 11 أيام قبل

    Anyone else itchy ? ;-;

  • Skywtaker
    Skywtaker 11 أيام قبل

    Mosquitos are vampires

  • Vertigo
    Vertigo 11 أيام قبل

    I heard if you squeeze a mosquito while they’re sucking your blood, they’re sucker gets stuck. And they can’t get out so all then can do is keep sucking until they explode.

  • honeybun33
    honeybun33 11 أيام قبل

    Thanks ladies!!!

  • King
    King 12 أيام قبل

    2019 Any One.. Me Only..... Okay..

  • Dorothy Lalremsiami
    Dorothy Lalremsiami 12 أيام قبل

    Oh how i hate them.....

  • Khloes Channel !!
    Khloes Channel !! 12 أيام قبل +3

    who else watching this after getting bit by a mosquito ??😂🥺

  • Rebecca Hmar
    Rebecca Hmar 12 أيام قبل

    Nothing like the joy of killing a mosquito

  • Helen Galt
    Helen Galt 12 أيام قبل

    Why the squelching background noise? It’s makes viewing worse 😂

  • Madhivadhanan S
    Madhivadhanan S 12 أيام قبل

    Watch this video from 2:45 at 0.25 speed and let me know if you're still alive

    It's straight out of a horror movie

  • Richard Barnett
    Richard Barnett 12 أيام قبل

    Anybody else is here because of hearing mosquito near you and now on here watching these videos about them?

  • GabbyPVPGamer
    GabbyPVPGamer 13 أيام قبل +1

    Bakit Nyo Pinapatay Ang Mosquitoes? Sila Na Nga Lang Mga Babae Lumalapit Sayo, Aayawan Mo Pa?

  • Naypr13_Yt
    Naypr13_Yt 13 أيام قبل

    Who else is watching this because they've recently been biten?

  • Robloxswagswag XD
    Robloxswagswag XD 13 أيام قبل

    I will get my fly zapper