Scribe 11/4/11

Hey guys!

Today in class, we went over some of the homework from the previous night, we reviewed the different functions of the key cells of the Immune system, and we learned about cell mediated immunity.

The key cells of the immune system are:
-B-cells, which include the plasma b-cells that produce antibodies. Matures in the bone marrow.
-Suppressed T-cells, which slow down/stop the activity of B-cells and other T-cells, after the infection has passed.
-Antibodies, which are not cells, but they are made of protein, and they attach to/tag antigens for destruction by immune system.
-Helper T-cell, which stimulates other cells to fight an infection, once it has identified foreign cells in the body.
-T-cell, destroys your infected cells. Matures in thymus.
-Killer/Cytotoxic T-cells, which transfer special proteins into cell membrane of pathogen, which causes cell to rupture/die.

We also reviewed that Agglutination is the process by which red blood cells clump together when they are held together by antibodies.

The last thing we did was learn about cell mediated immunity.
Here's how the process goes:
1. Macrophages, which have the antigens displayed on the surface of it, bind to T-cells.
2. T-cells get activated by macrophages and become helper T-cells.
3. Helper T-cell activates killer T-cells and B-cells.
4. Killer T-cells bind to the infected cell and disrupt their cell membranes, which destroys them.

Here's a quick video on cell mediated immunity.




Homework:
1. Muddiest point posts and comments
2. UP 32
3. UP 37-42
4. Read 35.4 carefully!
5. Remember! Our test is on Wednesday!!

Next scribe is.....Makenzie!