The statement is true. Macrophages are a type of white blood cell that play a crucial role in the immune system by engulfing and digesting cellular debris, pathogens, and foreign substances. They are present in various tissues throughout the body, including areolar tissue, which is a loose connective tissue that helps hold organs in place and provides a supportive framework.
In areolar tissue, macrophages contribute to the body’s defense by monitoring for infections and facilitating the repair of tissues. Similarly, macrophages are also found in lymphatic tissues, such as lymph nodes, where they help filter lymph fluid and respond to infections by presenting antigens to T lymphocytes, thereby initiating an immune response. This presence in both types of tissues underscores their essential role in maintaining homeostasis and protecting the body from potential threats.