Question 1

Which of the following is NOT a primary function of the lymphatic system?

Accepted Answer

Production of insulin

Question 2

Lymphatic capillaries are uniquely structured to allow the entry of bacteria and cells. Which feature is responsible for this?

Accepted Answer

Valve-like flaps created by loosely overlapped endothelial cells

Question 3

What is the name of the milky fluid formed when fat is absorbed by intestinal lymphatic capillaries?

Accepted Answer

Chyle

Question 4

Which of the following mechanisms does NOT contribute to lymph flow?

Accepted Answer

High arterial blood pressure

Question 5

A patient presents with localized swelling and fluid retention in the leg. Which condition is most likely responsible?

Accepted Answer

Lymphedema

Question 6

Which lymphatic organ is the site of hematopoiesis and releases mature blood cells into the bloodstream?

Accepted Answer

Red bone marrow

Question 7

What is the primary function of the thymus gland?

Accepted Answer

Maturation of T lymphocytes

Question 8

Which lymphatic organ is most vulnerable to injury due to its highly vascular nature?

Accepted Answer

Spleen

Question 9

Which of the following is TRUE regarding the right lymphatic duct?

Accepted Answer

It empties into the right subclavian vein

Question 10

Which of the following is a cardinal sign of inflammation?

Accepted Answer

Swelling

Question 11

Which cell type is responsible for immune surveillance and can destroy cancer cells?

Accepted Answer

Natural killer (NK) cells

Question 12

Which of the following is NOT a component of innate immunity?

Accepted Answer

B cells

Question 13

The complement system is activated by several pathways. Which pathway is triggered by antigen-antibody complexes?

Accepted Answer

Classical pathway

Question 14

Which equation best describes the relationship between lymph flow ($$Q$$), pressure difference ($$\Delta P$$), and resistance ($$R) in $$the lymphatic system?

Accepted Answer

$$Q = \frac{\Delta P}{R}$$

Question 15

A child with repeated tonsil infections is most likely experiencing issues with which tonsil?

Accepted Answer

Palatine tonsil

Question 16

Which of the following is a function of the spleen?

Accepted Answer

Destruction of aged red blood cells

Question 17

During an inflammatory response, which chemical is primarily responsible for pain?

Accepted Answer

Prostaglandins

Question 18

Which process describes the formation of a ring of complement proteins in the plasma membrane of a target cell, leading to cytolysis?

Accepted Answer

Membrane attack complex

Question 19

A fever is triggered when neutrophils and macrophages secrete which pyrogen after phagocytizing bacteria?

Accepted Answer

Interleukin-1

Question 20

Which of the following best describes adaptive immunity?

Accepted Answer

It results from prior exposure and protects against a particular pathogen

The Lymphatic and Immune Systems: Structure, Function, and Defense Mechanisms

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