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White Blood Cells

Transcript: White blood cells are colourless, with clear or granulated cytoplasm, and are capable of independent movement. They occur in the blood, lymph, and elsewhere in the body's tissues. Unlike mature red blood cells they contain a nucleus. Whenever a germ or infection enters the body, the white blood cells snap to attention and race toward the scene of the crime. The white blood cells are continually on the lookout for signs of disease. When a germ does appear, the white blood cells have a variety of ways by which they can attack. Some will produce protective antibodies that will overpower the germ. Others will surround and devour the bacteria. The white blood cells have a rather short life cycle, living from a few days to a few weeks. A drop of blood can contain anywhere from 7,000 to 25,000 white blood cells at a time. If an invading infection fights back and persists, that number will significantly increase A consistently high number of white blood cells is a symptom of Leukemia, a cancer of the blood. A Leukemia patient may have as many as 50,000 white blood cells in a single drop of blood. A healthy adult human has between 4,500 and 11,000 white blood cells per cubic millimeter of blood White cell count also may increase in response to convulsions, strong emotional reactions, pain, pregnancy, labor, and certain disease states, such as infections and intoxication. As living cells, their survival depends on their continuous production of energy Some white cells can produce antibodies. Antibodies are specific chemicals that can attach to chemicals that do not belong to the body, such as toxins or chemicals on disease-causing bacteria. Chemicals that do not belong to the body are said to be ‘foreign’. If these chemicals cause the body to produce antibodies, they are called antigens. Once these foreign chemicals have contacted the blood, some white blood cells can retain the memory of the particular antibody that is needed for defence The next time the antibody is needed it is produced quickly and in large amounts to prevent the body being harmed – the body shows immunity to the disease. The End! Group:Adila,Adeeba,Jas,Samir,Dean,Harris Video of a real white blood cell White Blood Cells

White Blood Cells

Transcript: Of course, they are some kind of white cells. Leukocytes or white blood cells protect the body in various ways against disease. Defends the body against infection and disease by producing antibodies. Have you seen a WBC in action ? How many WBC are in our body ? The white blood cells have a rather short life cycle, living from a few days to a few weeks. A drop of blood can contain anywhere from 7,000 to 25,000 white blood cells at a time. Probably more than Romanian Army. Conclusion White blood cells ( WBCs), or leukocytes, are cells of the immune system defending the body against both infectious disease and foreign materials. What does a WBC do ? Types of WBC Granular The argranulocytes lack granules in their cytoplasm. The granulocytes are short lived (12h) and develop the red marrow By Me What are white blood cells ? Agranular White Blood Cells

White Blood Cells

Transcript: There are 5 types of white blood cells websites used They are produced inside the bone marrow and stored in your blood and lymphatic tissue. They are constantly being produced because there life span is 3 days health.cha.org biology-igsseweebly.com bilisstree.com bioweb.com Step 3 White cells- less technical term for leukocyte. By: Kirsten, Ben, Cody https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=video&cd=4&cad=rja&ved=0CFYQtwIwAw&url=http%3A%2F%2Fwww.dnatube.com%2Fvideo%2F1517%2FImmune-System-White-Blood-Cells-TCells-Cancer-Cells&ei=4x5UUp_qIYXo8gTv94HoCA&usg=AFQjCNGeKvkcdIMqqdx-g6ydV9NygWC0Kg&bvm=bv.53537100,d.eWU White blood cells flow through out your blood stream to battle anything that threatens your health. When your body is under attack the white blood cells rush to destroy the illness. White Blood Cells Step 2 They have a nucleus and are sometimes large and lobed. They can move around, and are smashed out though the walls of your blood capillaries into all parts of your body Step 1 They all have the same functions of fighting and clearing up and dead body cells in your body video White blood cells account for about 1% of your blood. The white blood cells are essential for good health they help fight off illness and disease. They are your immunity cells.

White Blood Cells

Transcript: ELEMENTS White Blood Cells are also known as leukocytes Nucleated formed elements of blood. Normal human body contains 4,000-11,000 WBCs per liter Are mobile units of the body's protective system. Are Important part of the body's defense against infectious organisms and foreign substances Introduction BRAINSTORM WBC's work in 2 ways to prevent disease: By destroying the invading bacteria or viruses Forming Antibodies and sensitized lymphocyles Write the primary idea of the mind map in the center. Use different color notes to differentiate between topics. Use lines and arrows to create branches that connect ideas to each other. White Blood Cells cont. White Blood Cells Main Idea copy and paste as needed and take advantage of an infinite canvas! By: Khalee Reid There are five type of leukocytes, they lack Hb, so therefore are colorless.

White blood cells

Transcript: Lymphocytes Your task! You must produce, in your books, a comic book strip showing how the two types of white blood cell work. You must include the key words Antibody, Antigen, Ingest. You will NEED to find out information in the Co-ordinated science 2 books. You need at least 3 pictures for Phagocytosis, and 4 pictures for Antibodies. Label and annotate anything that needs it. (such as what the white blood cell is, what it is killing, etc) Memory cells, what role do you think they play? Write a short paragraph on immunity, including these key words Memory cells Antibodies Vaccine Artificial Natural Immunity Whats the difference between natural and artificial immunity? They aren't the only ones! Not quite pac-man! Finish up White blood cells

White Blood Cells

Transcript: Leukemias are a group of diseases characterized by increased numbers of white cells in the blood and bone marrow. by : Nick and Matteo Model of a white blood cell Leukemia White Blood Cells What happens when you have uneven amounts of WBC's? Why do we need white blood cells? What are white blood cells? White blood cells are a part of the immune system and help our bodies fight infection. They circulate in the blood so that they can be transported to an area where an infection has developed When the number of ehite blood cells in your blood increases, this is a sign of an infection somewhere in your body. when you have too little wbc's it is a sign of a weak immune system White blood cells account for only about 1 percent of your blood Their impact is significant White blood cells are also called leukocytes They essential for good health and protection against illness and disease There are between 4-10 million wbc's in your body when you have too many wbc's it is a sign of an infection wbc's are extremely important cells to our human body In conclusion... White blood cells lukemeia is cancer of white blood cells and other blood cells Our model white blood cells are created in bone marrow wbc's fight against diease and bad bacteria

White Blood Cells

Transcript: White Blood Cells Budapest San Francisco White blood cells fight against diseases and infections. (cc) photo by Metro Centric on Flickr (cc) photo by Metro Centric on Flickr Disease Protection Cancer and HIV/AIDS are two diseases that are immune to the white blood cells' tactics. Our Project Stockholm Leukocytes (cc) photo by jimmyharris on Flickr Research (cc) photo by Franco Folini on Flickr

white blood cells

Transcript: types of cells RESULTS PLAN 3 YES! WHITE BLOOD CELLS white blood cells SUMMARY Neutrophils defend against bacterial or fungal infection. They are usually first responders to microbial infection; their activity and death in large numbers forms pus. They are commonly referred to as polymorphonuclear (PMN) leukocytes, although, in the technical sense, PMN refers to all granulocytes. They have a multi-lobed nucleus that may appear like multiple nuclei, hence the name polymorphonuclear leukocyte. Granulocytes (polymorphonuclear leukocytes): leukocytes characterized by the presence of differently staining granules in their cytoplasm when viewed under light microscopy. These granules (usually lysozymes) are membrane-bound enzymes that act primarily in the digestion of endocytosed particles. There are three types of granulocytes: neutrophils, basophils, and eosinophils, which are named according to their staining properties Lymphocytes are much more common in the lymphatic system. Lymphocytes are distinguished by having a deeply staining nucleus that may be eccentric in location, and a relatively small amount of cytoplasm. The blood has three types of lymphocytes: B cells make antibodies that bind to pathogens to enable their destruction. T cells: CD4+ helper T cells CD8+ cytotoxic T cells NO! Basophil DATE: PROJECT REPORT SOLVED PROBLEMS Neutrophil SUCCESS? EXECUTION White blood cells, or leukocytes (also spelled "leucocytes"), are cells of the immune system involved in defending the body against both infectious disease and foreign materials. Five different and diverse types of leukocytes exist, but they are all produced and derived from a multipotent cell in the bone marrow known as a hematopoietic stem cell. They live for about three to four days in the average human body. Leukocytes are found throughout the body, including the blood and lymphatic system. RESULTS NO! YES! REMAINING PROBLEMS Granulocytes Eosinophil Eosinophils primarily deal with parasitic infections. Eosinophils are also the predominant inflammatory cells in allergic reactions. The most important causes of eosinophilia include allergies such as asthma, hay fever, and hives; and also parasitic infections. In general, their nucleus is bi-lobed. The cytoplasm is full of granules that assume a characteristic pink-orange color with eosin stain. Lymphocyte CREATED BY: WHAT NOW? The name "white blood cell" derives from the fact that after centrifugation of a blood sample, the white cells are found in the buffy coat, a thin, typically white layer of nucleated cells between the sedimented red blood cells and the blood plasma. The scientific term leukocyte (from the Greek word leuko- meaning "white" and kytos meaning "hollow vessel", with -cyte translated as "cell" in modern usage) directly reflects this description. Buffy coat may sometimes be green if there are large amounts of neutrophils in the sample, due to the heme-containing enzyme myeloperoxidase that they produce. YES! NEW CHALLENGES MORE VIDEOS Basophils are chiefly responsible for allergic and antigen response by releasing the chemical histamine causing vasodilation. The nucleus is bi- or tri-lobed, but it is hard to see because of the number of coarse granules that hide it. They are characterized by their large blue granules. Etymology NO! TEAM:

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