generate questions: The immune system is a system of many biological structures and processes within an organism that protects against disease. To function properly, an immune system must detect a wide variety of agents, known as pathogens, from viruses to parasitic worms, and distinguish them from the organism's own healthy tissue. In many species, the immune system can be classified into subsystems, such as the innate immune system versus the adaptive immune system, or humoral immunity versus cell-mediated immunity. In humans, the blood–brain barrier, blood–cerebrospinal fluid barrier, and similar fluid–brain barriers separate the peripheral immune system from the neuroimmune system which protects the brain.
What is the immune system? {sep_token} What does the immune system protect against? {sep_token} What are two of its subsystems? {sep_token} What is the subsystem that protects the human brain? {sep_token} What is the immune system? {sep_token} What does the immune system protect against? {sep_token} What are two of its subsystems? {sep_token} The immune system protects organisms against what? {sep_token} What are the agents the immune system detects known as? {sep_token} Which part of the immune system protects the brain? {sep_token} What separates the neuroimmune system and peripheral immune system in humans? {sep_token} What are the agents detected by the immune system called? {sep_token} What are the two major subsystems of the immune system? {sep_token} What are the two different types of immunity? {sep_token} What is the immune system of the brained known as? {sep_token}