1 / 3

Understanding White Blood Cells and Their Role in Immunity

Learn about white blood cells, or leukocytes, derived from bone marrow stem cells. Discover their defense mechanisms, including targeting and engulfing foreign cells. Explore their diversity in types, sizes, and functions in immunity, including neutrophils, basophils, lymphocytes, macrophages, dendritic cells, and natural killer cells.

tirzah
Download Presentation

Understanding White Blood Cells and Their Role in Immunity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lecture 8Circulation

  2. White Blood Cells/Leukocytes • Arise from stem cells in the bone marrow. • Function in the defense mechanism. • Target/engulf damaged & dead cells foreign to the body. • Many-massed together in lymph nodes & the spleen, which divides to produce cells that act against specific viruses, bacteria etc. • Differ in types, size, shapes, stains and specific immunological functions.

  3. Types of Leukocytes • Neutrophils-fast-acting phagocytes. • Basophils-inflammatory responses to invasions & tissue damage. • Lymphocytes-produces T and B cells; specific immune response. • Macrophages and dendritic cells – phagocytes that call provoke immune response to specific threats. • Natural killer cells – kill body cells that have turned cancerous or have been infected with viruses.

More Related