The main function of lymph nodes is to
Correct answer: C. filter lymph and provide a site where lymphocytes multiply
- A. pump lymph around the body
- B. produce red blood cells
- C. filter lymph and provide a site where lymphocytes multiply
- D. absorb glucose from the small intestine
Explanation
Nodes are packed with macrophages that trap bacteria and debris carried in the lymph, and with lymphocytes that divide there when an antigen is met, which is why nodes in the neck swell during a throat infection. The lymphatic system has no pump of its own and relies on skeletal muscle movement and valves. Red cell formation belongs to red bone marrow.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Lymphatic System
The lymphatic system returns excess tissue fluid to the bloodstream and supports immune defence through lymph, lymph vessels, lymph nodes, the spleen, thymus and tonsils. It also transports absorbed fats from intestinal lacteals, which distinguishes lymphatic circulation from the blood vascular system.
Practise Circulation
695 free Circulation MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Biology questions like this
Biology is on 8 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.