Health & Wellness
Lymphatic System Quiz
Lymph nodes, drainage, and immunity — how well do you know your body's 'second circulatory system'?
Lymph nodes, drainage, and immunity — how well do you know your body's 'second circulatory system'?
The lymphatic system has no central pump — lymph flows only due to muscle movement, breathing, and one-way valves. Often called the body's 'second circulatory system,' it drains 2–3 liters of fluid every day, transports dietary fats from the gut, and forms a critical part of the immune response. This quiz covers nodes, vessels, lymphocytes, and the diseases that affect them.
Each round presents 10 randomized questions from a pool of 50, with four multiple-choice options and instant feedback after every answer. Your final score comes with a performance tier and shareable results.
You'll explore lymph node clusters and the thoracic duct, B and T cells, the spleen and thymus, intestinal lacteals and chyle, lymphedema and elephantiasis, lymphomas (Hodgkin vs non-Hodgkin), and clinical signs like Virchow's node — plus how manual lymphatic drainage and compression therapy work.
Humans typically have 500–700 lymph nodes, clustered most heavily in the neck (cervical), armpits (axillary), groin (inguinal), abdomen (mesenteric), and chest (mediastinal).
Lymphedema is chronic swelling caused by obstruction of lymphatic drainage. The most common causes worldwide are filarial infections (notably Wuchereria bancrofti) and damage from cancer surgery or radiation, especially after axillary lymph node removal.
The spleen filters the blood (not lymph), removes aged or damaged red blood cells, and houses about a quarter of the body's lymphocytes, making it a major hub of immune surveillance.
Last updated: April 2026