0
Immune System
This category is for questions about how our bodies identify and fight off disease, infection or pathogens through specialized cells, tissues and organs. The system that does this is called the immune system. It produces antibodies which recognize intruders and neutralizes potentially pathogenic organisms or substances.
4,548 Questions
Do pathogens directly attack human tissue?
Not always. Pathogens such as viruses must attack human cells to replicate. Other pathogens like bacteria can actually attack and distroy tissue or just cling onto the surface. (For example: Clostridium Difficile is a bacteria that can grow out of control in a person's colon; they cling to the walls and prevent the absorption of fluids, this results in diarrhea.) Some bacteria produce toxins that attack tissues.
Yes some pathogens attack human tissue.
Yes
What is a personal response to reading?
your personal response to the text you read,
e.g I think that Joseph was very brave as he didn't scream.
e.g I can relate to Maria, because her family are divorced and so are mine.
well I could go on forever but...
My grandma Lilly,
My Grandad Joe,
My dog,
A sheep that lives in the farm nextdoor,
My virginity
Uncle Bob
and last but not least My aunty Sid
What are the principle cells of the immune system and what is their role in the immune response?
The principle cells of your immune system are lymphocytes, or white blood cells. The immune system, however, is highly complex, and it is difficult to single out one type of cell for importance. All of the components have to work together in harmony for optimized function.
An immune response is generated when you are exposed to a foreign pathogen. Examples of this would be a virus, bacteria, parasite, or fungus. Your immune system's job is to recognize the invader and destroy it. In this case, the lymphocytes, or white blood cells, engulf the pathogen and eat it up, keeping it from multiplying and making you sick.
You want as many of these white blood cells as you can get when you are fighting off an infection. The rate limiting factor in the production of lymphocytes and the strength of your immune system is a protein called glutathione.
True or false The skin provides the first defense against invasion by pathogens?
True. The skin acts as a physical barrier and provides the first line of defense against invasion by pathogens, preventing them from entering the body.
Do B cells develop in the thymus?
No. Both B- and T-cell precursors come from the bone marrow.
B-cells hang around in bone marrow to mature (hence the "B").
T-cells develop in the thymus (hence the "T").
Do mast cells release histamine causing red bumps?
Yes. Mast cells contain histamine. When exposed to allergens, the membranes of the cell degrade, releasing histamine and causing what are typically recognized as allergic responses, such as hives, runny eyes, nose, sneezing, facial edema, etc. One approach to preventing allergic histamine release - while at the same time not impairing the healthy histamine pathway - is to use plant-based foods/medicines that contain constituents with mast-cell-strengthening properties. Some of these are green tea, rosemary, turmeric, and grape seed. Bioflavanoid supplements such as quercetin are helpful, and quercetin is found in many of the plants that strengthen mast cell membranes.
Whant if your man is sick and you dont want him to die?
I know that feeling as my husband (whom I've known for 40 years and been married too for 35 of those years) almost died. It's a terrible feeling and no matter how hard one fights the Health Care System, or their own fears of losing the one they love it is terrifying. Most of us are very strong until either the person becomes well or passes on and that's when we fall apart. You didn't mention what your boyfriend/husband's illness was. If he is ill it doesn't necessarily mean he will die. If he has had a diagnosis from a specialist he will die then that is another thing. However, faith and mind over body has performed miracles. If you would like to give me more information as to the nature of the illness of your boyfriend/husband please leave me a message on my Private Message Board and I will be glad to research it all for you.
What do microbes produce to kill other microbes?
Microbes can produce compounds such as antibiotics, bacteriocins, and enzymes that help them kill other microbes. These substances are often used as defense mechanisms to compete for resources and survive in their environment.
