Question

24
what function do lymph nodes, lymphatic vessels, and lymph perform for the body when they work together?

a. breaking down nutrients from digested foods

b. collecting substances that leak out of small blood vessels

c. absorbing oxygen through thin - walled vessels

d. releasing hormones that travel to other tissues

Explanation:

• Option A: Breaking down nutrients from digested foods is the role of the digestive system (e.g., enzymes, intestines), not the lymphatic system.
• Option B: The lymphatic system (lymph nodes, lymphatic vessels, lymph) functions to collect interstitial fluid (substances that leak out of capillaries) and return it to the bloodstream. This matches the role of these structures.
• Option C: Absorbing oxygen through thin - walled vessels is the function of the respiratory system (alveoli in lungs), not the lymphatic system.
• Option D: Releasing hormones that travel to other tissues is the role of the endocrine system (glands like pituitary, thyroid), not the lymphatic system.

Answer:

B. Collecting substances that leak out of small blood vessels