Because biological limbs are connected to our skeletons, we don't notice that they weigh a lot! As technology develops, scientists have designed lighter, more functional prostheses and the latest can even use the skeleton like a biological limb does! Hosted by: Hank Green ---------- Support SciShow by becoming a patron on Patreon: www.patreon.com/scishow ---------- Dooblydoo thanks go to the following Patreon supporters: Lazarus G, Sam Lutfi, Nicholas Smith, D.A. Noe, سلطان الخليفي, Piya Shedden, KatieMarie Magnone, Scott Satovsky Jr, Charles Southerland, Patrick D. Ashmore, Tim Curwick, charles george, Kevin Bealer, Chris Peters ---------- Looking for SciShow elsewhere on the internet? Facebook: www.facebook.com/scishow Twitter: www.twitter.com/scishow Tumblr: scishow.tumblr.com Instagram: instagram.com/thescishow ---------- Sources: www.dtic.mil/dtic/tr/fulltext/u2/710622.pdf www.ncbi.nlm.nih.gov/pmc/articles/PMC4040928/pdf/TODENTJ-8-50.pdf www.ncbi.nlm.nih.gov/pmc/articles/PMC5371647/ www.wrnmmc.capmed.mil/Health%20Services/Surgery/Orthopaedics%20and%20Rehabilitation/Osseointegration/SiteAssets/Osseointegration-FactSheet%20VA.pdf www.osseointegrationaustralia.com.au/ onlinelibrary.wiley.com/doi/epdf/10.1111/cid.12578 Images: www.ncbi.nlm.nih.gov/pmc/articles/PMC5371647/figure/Fig2/ en.wikipedia.org/wiki/Bulbous_corpuscle#/media/File:Blausen_0807_Skin_RuffiniCorpuscle.png en.wikipedia.org/wiki/Nacre#/media/File:Nacre_sticks.JPG en.wikipedia.org/wiki/Osseointegration#/media/File:Osseointegration_Histology.jpg www.ncbi.nlm.nih.gov/pmc/articles/PMC5371647/figure/Fig5/ www.ncbi.nlm.nih.gov/pmc/articles/PMC5371647/figure/Fig6/ www.ncbi.nlm.nih.gov/pmc/articles/PMC5371647/figure/Fig4/ Istock.com

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