Monday Class!!

Primary and Secondary Response













HIV Virus












In class:

At the beginning of class, we turned in UP page 32, UP pages 37-42, and your postcard. Then we went over Primary and Secondary response which had to do with the picture that was on Yvette's post and also shown above. The main difference between the two is that Secondary response uses memory B-cells and it allows it to produce more quickly.

Then we completed the immune system tree map by taking notes on Acquired Immunity. There are two types of Acquired Immunity which are active, and passive. Active immunity is when your body makes the antibodies. An example of this would be a vaccine or a exposure to the disease. Passive immunity is when your antibodies are obtained passively. An example of this would be by breast milk or a injection of antibodies. Active immunity has longer lasting memory cells when passive immunity is more temporary.

Afterwards, we took notes Immune system disorders such as Allergies, Autoimmune Diseases, Immunodeficiency Disease, and the HIV virus.

Allergies are overreactions of the immune system that produces mast cells to produce histamines. The histamines are chemicals which increase the blood flow and your fluid production such as tears and mucus. They also signal inflammation.

Autoimmune Diseases is when your immune system mistakenly attacks its own cells. Some examples of this is type one diabetes,Rheumatoid Arthritis, and Multiple Sclerosis.

The Immunodeficiency Disease is caused by the HIV virus. One of the most commonly known Immunodeficiency Diseases is AIDS. The HIV virus and the AIDS virus is transmitted through blood or body fluids. HIV is detected with the presence of HIV antibodies and it causes the helper T-cells to be unable to activate the B-cells and T-cells which result in the inability to fight off the disease. The HIV virus is very sneaky and it uses RNA to produce DNA which is commonly known as a retrovirus. This virus is so problematic because it invades defenses of the immune system and destroys your helper T-cells. Your helper T-cells tell the other cells what to do and without them, your cells wouldn't know what to do. In class we watched a animation on the production of the HIV virus and Mrs. Stein put the video on moodle.

Mrs. Stein asked the class for questions they had on the test. For question 5 on the objective sheet, you don't need to know any of the diseases that we didn't talk about and be familiar with the pathogens for the diseases we did talk about. She will be having a review session tomorrow morning and everyone is welcome!

At the end of the class, we watched a movie on bird flu which was spread from bird to bird by their poop. This is not a major problem in humans today but may develop as a serious problem in the future.

Homework:

STUDY FOR THE TEST TOMORROW!!!! (Optional study session tomorrow morning with Mrs. Stein!)

READ SECTION 35.4

P.S. I HOPE YOU FEEL BETTER MRS.STEIN!! (She lost her voice and wasn't feeling so well :( )

The next scribe is Bridget!!