Which root means immune system?

Which root means immune system?

• A. phago
• B. cyto
• C. lymph
• D. immun

Answer: (C)

Lymph is the root that ties directly to the immune system because it names the lymphatic system—the network that transports lymph fluid and houses immune cells, helping coordinate immune responses. Lymph nodes filter pathogens and activate lymphocytes, so terms built from the lymph root are closely associated with immunity and immune defense. The other roots point to related ideas—phago means eating, cyto means cell, and immun means immune in general—but do not name the body system itself. Thus, lymph best represents the immune system in word form.

Lymph is the root that ties directly to the immune system because it names the lymphatic system—the network that transports lymph fluid and houses immune cells, helping coordinate immune responses. Lymph nodes filter pathogens and activate lymphocytes, so terms built from the lymph root are closely associated with immunity and immune defense. The other roots point to related ideas—phago means eating, cyto means cell, and immun means immune in general—but do not name the body system itself. Thus, lymph best represents the immune system in word form.