The video explains the human immune system's role in defending against pathogens and introduces autoimmunity, where the immune system attacks the body's own tissues. It discusses autoimmune diseases, their classification into organ-specific and systemic types, and their incurable nature. Treatments like immunosuppressants are mentioned. The video details specific diseases such as Hashimoto's thyroiditis, Graves' disease, diabetes mellitus type I, systemic lupus erythematosus, multiple sclerosis, and rheumatoid arthritis, highlighting their causes, symptoms, and affected demographics.

What is the primary function of the human immune system?

• To produce insulin

• To distinguish between self and foreign substances

• To attack the body's own cells

• To increase blood glucose levels

Which of the following is an example of an organ-specific autoimmune disease?

• Rheumatoid arthritis

• Hashimoto's thyroiditis

• Multiple sclerosis

• Systemic lupus erythematosus

What is a common symptom of Graves' disease?

• Weight gain

• Decreased blood glucose levels

• Increased insulin production

• Hair loss

What causes Diabetes mellitus type I?

• Overproduction of insulin

• Increased acetylcholine production

• Autoimmune attack on pancreatic cells

• Excessive iodine uptake

Which symptom is associated with Myasthenia gravis?

• Increased thyroid hormone production

• Joint inflammation

• Drooping eyelids

• Butterfly rash

What is a characteristic sign of systemic lupus erythematosus?

• Goiter

• Protrusion of eyeballs

• Butterfly rash

• Frequent urination

Which autoimmune disease is influenced by geographical location?

• Multiple sclerosis

• Graves' disease

• Myasthenia gravis

• Hashimoto's thyroiditis