- Q What causes myasthenia gravis?
Myasthenia gravis is caused by a defect in the transmission of nerve impulses to muscles. It occurs when normal communication between the nerve and muscle is interrupted at the neuromuscular junction -- the place where nerve cells connect with... Full Answer
- Q What are dendritic cells?
Dr. Joel Fuhrman, Family MedicineDendritic cells are tree-shaped immune cells that are scattered throughout the body in their immature or deactivated form. When activated they trap and process what they recognize as enemy material to present it to other immune cells to remove or kill... Full Answer
- Q What foods can help my immune system?
Dr. Mehmet Oz, CardiologyFoods like sardines, papaya, carrots, miso, elderberry, and garlic can boost immunity. Learn more about these foods that boost immunity in this video with Dr. Oz. Full Answer
- Q How does exercise affect the immune system?
Eric Olsen, FitnessHow exercise works to enhance the immune system is not fully understood, although studies have shown that moderately vigorous aerobic training such as brisk walking is associated with an increase in the number of T-lymphocytes (also known as... Full Answer
- Q What are immunoglobulin M (IGM) antibodies?
Dr. Paul Ehrlich, Allergy & ImmunologyImmunoglobulin M (IgM) is the first antibody that turns out to fight an infection. It is then replaced by longer-lived immunoglobulin G (IgG). The immune system uses this antibody to activate the complement system, a sequence of interactions that... Full Answer