Immune System

Macrophage: Type of white blood cell that attacks foreign invaders in the body. They help to destroy bacteria, tumors, etc. Helps other cells in the body respond in the immune system.

T Helper Cells: A type of white blood cell that recognizes antigens (any foreign substance that can enter the body) releasing cytokines that activate B+ killer T cells.

B Cells: Lymphocytes playing a large role in the immune system response. Will release antibodies to fight off antigens.

Antibodies: Proteins that bind to an antigen and neutralizes it.

Killer Cells: Destroys antigens that are discovered by our antibodies.

Cytotoxic T Cells: Type of T-cell which kills cells that are infected with viruses and other pathogens.

Memory Cells: Immune cells (long lifespans) remembering attacks by certain atigens. When these antigens return, memory cells trigger a quick immune system response before the body experiences the symptoms.

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Asthma: For some, their lungs are sensitive to and experience allergic responses pollen/dander/etc. The breathing tubes in the lungs narrow restricting airflow and an individual experiences difficulty breathing.

DiGeorge Syndrome: This is a birth defect, where children are born with out a thymus gland. The thymus gland is where T-cells normally mature, and this syndrome is an example of a T-lymphocyte disease.