Your feedback is essential! Submit Feedback!+
abcadd-coloradd-playlist-darkadd-playlist-greenadd-playlistsadd-safeview-greenadd-safeviewadd-whitearrow-down-whitearrow-downicon /arrow-left-lilaCreated with Sketch. arrow-left-whitearrow-leftarrow-yellowbirthdaybookbooksbrowsercalendar-small-lightcalendar-smallcalendarcards-graycards-whiteccicon /checkmark-smallCreated with Sketch. checkmark-whitecheckmarkchevron-dropdown-whitechevron-dropdownchevron-multiple-whitechevron-multiplecircles-addcircles-removecircles-unlimited-2circles-unlimitedcirclescissorsclose-whiteclosecoin-goldcoin-purpleicon /confettiCreated with Sketch. cross-gray-small cross-yellow-small cursor-movecutdashboardicon / deactivated-markCreated with Sketch. delete-whitedelete-yellowdeletedonatedownload-cloudeditemail-whiteemailerror-yelowexpand-down-whiteexpand-downeye-crossedeye-small-crossedeye-smalleyefacebook-colorfacebook-roundedfacebookfilmforgot_passwordfull-imageglobegoogle-accountgoogle-plus-colorgoogle-plus-roundedhamburger-bluehamburger-whitehamburger-yellowhamburgerhand-uphandle-with-carehandlerhinthomeimage-addimage-editimageinfo-circle-whiteinfo-circleinfoinspector-sskey-whitekeylanguagelightning-bolt-whitelightning-boltlist-graylist-whiteicon / lock-eyedCreated with Sketch. lock-hugelock-smalllocklog-outlogo /logo-purple-whiteCreated with Sketch. logo-windows-blueloop-toolmarkermascot-bluemascot-geenmascot-purple-404mascot-purple-exclamationmascot-purplemascot-redmascot-yellowmedalnext-whitenextoptions-horizontal-whiteoptions-horizontaloptions-vertical-whiteoptions-verticalicon /organizationCreated with Sketch. play-whiteplayplay80-blackplay80-whiteplaylists-bigplaylists-unlimitedplaylistspremium-badgepremiumprevious-whitepreviousquestionreceive-cashremove_user_femaleremove_user_maleremove-adsrobot_3rotate-leftrotate-rightrotate-whiterotatelogo /safeshare-blue-whiteCreated with Sketch. logo /safeshare-blue-yellowCreated with Sketch. logo /safeshare-purple-blueCreated with Sketch. logo /safeshare-purple-whiteCreated with Sketch. logo /safeshare-purple-yellowCreated with Sketch. logo /safeshare-white-purpleCreated with Sketch. logo /safeshare-white-yellowCreated with Sketch. safeviews-bigsafeviews-unlimitedsafeviewssearch-darksearchsettings-darksettingsshare-whitesharesmssortstationery-lilastationeryicon /subtract-whiteCreated with Sketch. supporttrash-purpletrash-whitetrashtwitter-colortwitter-roundeduser-femaleuser-maleusers-3users-5users-addusers-removeusersvimeo-bluevimeo-whitewarning-circlewhats-app-colorwhats-app-roundedyoutube-black-redyoutube-icon-blackyoutube-icon-redyoutube-icon-whiteyoutube-white-redyoutube-white

Immune System - Part 1: Innate Defenses

90 views

Table of Contents: Physical Barriers Like Skin and Mucous Membranes 2:01 Phagocytes: Neutrophils and Macrophages 3:17 Natural Killer Cells 4:29 Inflammatory Response 5:29

About SafeShare.tv

Launched as a beta version in 2009, SafeShare.tv has gained popularity as the safest way to Watch and Share YouTube and Vimeo videos, and is widely used all around the globe by educators so their students can watch educational material without the fear of inappropriate videos showing up.

Are you sure you want to do this?