1. ON A BLANK SHEET OF PAPER, CHOOSE 3 DIFFERENT ORGAN SYSTEMS AND DESCRIBE HOW EACH ONE WORK WITH ANOTHER SYSTEM Bellwork 11-23-15

2. 0707.1.2 AND 0707.1.3 Can I summarize how the different levels of organization are integrated within living systems? Can I explain the basic functions of a major organ system? How do different organ systems enable a complex multicellular organism to survive? Students will be able to analyze how plant and animal cells are organized to carry on the processes of life?

3. IMMUNE SYSTEM The immune system is made up of a network of cells, tissues, and organs that work together to protect the body. The first line of defense is the skin, which protects the body from outside germs. White blood cells, also called leukocytes, are part of this defense system. Two basic types of these germ-fighting cells: 1.Phagocytes- protect the body by ingesting harmful foreign particles, bacteria, and dead or dying cells. 2.Lymphocytes

4. IMMUNE SYSTEM Once the lymphocytes have determined that a bacterium or virus has entered the body, B cells (produced in bone) produce germ attackers called antibodies. Anything that can trigger this immune response, such as bacteria or viruses, is called an antigen. An antibody matches an antigen much as a key matches a lock. Whenever antigen and antibody interlock, the antibody marks the antigen for destruction.

6. MRSA MRSA is a staph germ (bacteria) that is spread by skin-to-skin contact (touching). A doctor, nurse, other health care provider, or visitors may have staph germs on their body that can spread to a patient. Once the staph germ enters the body, it can spread to bones, joints, the blood, or any organ, such as the lungs, heart, or brain. A body’s normal antibody production usually cannot fight off MRSA by itself. MRSA needs to be treated with multiple rounds of antibiotics. Draining a skin infection may be the only treatment needed for a skin MRSA infection that has not spread.

7. MUCUS Tears and mucus contain an enzyme that breaks down the cell wall of many bacteria. Your nose and sinuses make about a quart (about 1 liter) of snot every day. Mucus has a pretty important job — it protects the lungs. When you breathe in air through your nose, it contains lots of tiny things, like dust, dirt, germs, and pollen. If these made it all the way to the lungs, the lungs could get irritated or infected, making it tough to breathe. Luckily, snot helps trap this stuff, keeping it in the nose and out of the lungs.

8. BrainPop- ImmuneImmune

9. HBS CHART- IMMUNE Function: works to protect your body from pathogens. Major Organs: skin (first line of defense)  Cells that fight pathogens: white blood cells, phagocytes, lymphocytes How it works with other systems: works with the circulatory system (white blood cells) and the integumentary system (skin)

10. LYMPHATIC SYSTEM (PG. 242-245) The lymphatic system is a group of organs and tissues that collect the excess fluid and return it to your blood. The fluid (lymph) is a clear, watery fluid that contains protein molecules, salts, and glucose that is carried by the lymphatic vessels and then into the veins of the cardiovascular system. The lymphatic system also helps your body fight pathogens. A pathogen is an infectious agent, or germ.

11. LYMPHATIC SYSTEM (PG. 242-245) Parts of the Lymphatic System: 1.Bone marrow is where most red and white blood cells, including lymphocytes are produced. Lymphocytes are a type of white blood cell that helps your body fight pathogens. 2.Lymphatic vessels 3.Lymph nodes are small bean-shaped masses of tissue that remove pathogens and dead cells from the lymph. 4.Thymus gland produces T cells (lymphocytes) that surround and destroy pathogens. 5.Spleen stores and produces lymphocytes. 6.Tonsils are masses of lymphatic tissue that help protect your throat and lungs from infection by trapping pathogens.

12. BrainPop- LymphaticLymphatic

13. HBS CHART- LYMPHATIC Function: returns leaked fluids to blood vessels and helps get rid of bacteria and viruses. Major Organs: tonsils, spleen, lymph nodes, lymphatic vessels How it works with other systems: works with the circulatory system to return leaked fluid to the blood and works with the immune system to fight pathogens.

14. HBS STORY Work on two new paragraphs, one for the Immune System and one for the Lymphatic System. Make sure to include at least 3 major organs from each