2.17.06 L53 - Lecture 53 The Immune System The Body's...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
May 7, 2009 Lecture 53: The Immune System The Body’s Defense Primary : The Walls – Physical Defenses o Our skin, epithelia (in and out of body, i.e. lung ep)  Secondary : Soldiers – Cellular attacks o Macrophages, Neutrophils, NK Cells, Dendrytic Cells Tertiary : Sentinels – Immune Responses o B and T Cells Where the War is fraught: bone marrow, blood, lymph, etc… Blood Cell Types All start from bone marros Erythroid Preogrnitors o RBCs and platelets Granulocytes o Neutrophils (WBCs) o Eosophils Monoctyes Lymphocytes o NK – Natiural Killer Cells o B-Cells Plasma Bs – Humoral (think Bs=Blood Memory BS o T-Cells (cellular) Cytotoxic T-Helpers Regulatory NON-SPECIFIC [Innate] Defenses Barriers – Skin & Mucus from epithelia Cellular Responses o Phagocytosis  by neutrophils, macrophages, & NK Cells (also release cytokines,  increasing alertness of system).
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern