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Human white blood cell trapping bacterial cells

A human white blood cell engulfing bacteria and destroying them with the help of enzymes from the cell's lysosomes.

http://www.cancerfoundation.com/about.html  Natural Killer Cells are the most aggressive white cells in the immune system. They make up about 5% to 15% of the total lymphocyte circulating population. They target tumor cell and protect against a wide variety of infectious microbes. Animation created by Kyle Thornthwaite - email: kyle@kt-3d.com

Immune System - Natural Killer Cell - some great videos in the sidebar too on how body systems work

In case you ever wondered what fertilization looks like up close:  Colored Scanning Electron Micrograph (SEM) of sperm clustered on the surface of a human egg during fertilization

In case you ever wondered what fertilization looks like up close: Colored Scanning Electron Micrograph (SEM) of sperm clustered on the surface of a human egg during fertilization

Macrophages are one of many types of white blood cells (leukocytes) present in body tissues. Macrophages are important in immune response and cell stability because they mobilize in cell tissue to attack large foreign particles..

Here a lung (alveolar) macrophage is seeking foreign bacteria (Escherichia coli) with specialized cell extensions called filopodia. Macrophages engulf and digest foreign materials in a process known as phagocytosis.

The Scientist: "Image of the Day: Immune System at Work | White blood cells engulf spores of the fungus Aspergillus fumigatus, which often causes disease in immunocompromised people.  Priyanka Narang, Manfred Rohde, and Matthias Gunzer, Helmholtz Centre for Infection Research, PLoS Pathogens, doi:10.1371/image.ppat.v03.i02.g001"

Immune System at Work: White blood cells engulf spores of the fungus Aspergillus fumigatus, which often causes disease in immunocompromised people.

golgi apparatus.

Golgi apparatus of eukaryotic cells functions in protein synthesis. I loved my molecular biology class and love this photo. Now, how to incorporate cell structure and cellular functions for my class?

GcMAF: The Secret Key to Restoring Your Immune SystemOf the several hundred supplements and medications I have tried over the course of my six-year journey to treat Lyme disease, I have found only a dozen or so products to be extremely beneficial. Gc…

The bacteria appear pink. The macrophage (appearing blue) is stretching out and engulfing them. This is part of the body's front line defense against invaders.

Comparison of a human red blood cell ,erythrocyte,, a white blood cell ,leukocyte,, and a platelet ,thrombocyte,. SEM X2500.

Comparison of a human red blood cell (erythrocyte) a white blood cell (leukocyte) and a platelet (thrombocyte) SEM

Lymphocyte. Coloured scanning electron micrograph (SEM) of a lymphocyte white blood cell. Lymphocytes are involved in the immune system's defence mechanisms, lymph system, and involved in antibody production.

The lymphocyte, a star within. Very poetic looking coloured scanning electron micrograph (SEM) of a lymphocyte white blood cell. Lymphocytes are involved in the immune system's defence mechanisms, lymph system, and involved in antibody production.

Migrating cancer cell. Coloured scanning electron micrograph (SEM) of a cultured cancer cell moving (metastasising) through a hole in a support film. Numerous pseudopodia (arm-like), fillipodia (thread-like) and surface blebs (lumps) can be seen. These features are characteristic of highly mobile cells, and enable cancerous cells to spread rapidly around the body, and invade other organs and tissues (metastasis). #anatomy #microscope #microscopic #medicine #medical #human

Coloured SEM of a cultured cancer cell moving through a hole in a support film. Numerous pseudopodia, fillipodia and surface blebs can be seen and are characteristic of highly mobile cells which enable them to metastasise rapidly.

Eyelash mite. Coloured scanning electron micrograph (SEM) of an eyelash, or follicle, mite (Demodex folliculorum), a harmless parasite which lives inside human hair follicles. - Click image to find more Science & Nature Pinterest pins

**found one of mines Eyelash mite. Coloured scanning electron micrograph (SEM) of an eyelash, or follicle, mite (Demodex folliculorum), a harmless parasite which lives inside human hair follicles.

Nerve bundle. Coloured scanning electron micrograph (SEM) of a freeze-fractured section through a bundle of myelinated nerve fibres. Myelin sheaths (yellow) can be seen surrounding the axons (blue). Perineurium (connective tissue, pink) surrounds the nerve bundle while endoneurium divides the individual fibres.

Bundle of myelinated nerve FIBERS. Myelin sheaths (YELLOW) can be seen surrounding the axons (BLUE). PINK) surrounds the nerve bundle while endoneurium divides the individual fibres.

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