What is the main function of the lymphatic system in the body?, A. To pump blood throughout the body, B. To help manage body fluids and fight infections, C. To digest food in the stomach, D. To control muscle movement, What is the role of the lymphatic system in relation to the immune system?, A. It produces hormones for the body, B. It filters harmful substances and helps fight infections, C. It controls breathing and heart rate, D. It breaks down food for energy, How does the lymphatic system return fluid to the bloodstream?, A. By pumping blood directly through the heart, B. By sending fluid through arteries, C. By carrying lymph through vessels to ducts that drain into veins, D. By filtering fluid in the lungs, What happens to lymphatic capillary flaps when interstitial pressure increases?, A. They close tightly to stop fluid entry, B. They break apart and disappear, C. They open to allow fluid to enter, D. They turn into blood vessels, What is the function of lacteals in the small intestine?, A. To absorb oxygen into the blood, B. To absorb fats and fat-soluble vitamins, What is the main function of red bone marrow?Specialized Lymphatic Capillaries:, A. To store fat for energy, B. To produce blood and immune cells, What is the location of the thymus in the body?, A. In the abdomen near the stomach, B. In the mediastinum between the sternum and aorta, What structure divides the thymus into lobules?, A. Trabeculae, B. Blood vessels, What is the role of lymphatic vessels in the lymphatic system?, A. To carry lymph throughout the body, B. To control body temperature, What are lymph nodes in the lymphatic system?, A. Filters that trap harmful substances in lymph, B. Organs that pump blood through the body, C. Tubes that carry oxygen to the lungs, D. Muscles that help the body move.

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