Question 1

Which of the following best describes the primary function of lymphatic capillaries in the human body?

Accepted Answer

They collect approximately 10% of extracellular fluid that leaks out from cardiovascular capillaries and return it to the blood.

Question 2

A patient has a blockage in their right lymphatic duct. Which of the following regions would most likely experience impaired lymph drainage?

Accepted Answer

Right arm and right side of the head and chest

Question 3

Which of the following statements about lymph nodes is correct?

Accepted Answer

They filter lymph and are sites where lymphocytes detect and remove pathogens.

Question 4

Which of the following best explains why the lymphatic system is essential for immune function?

Accepted Answer

It contains T and B lymphocytes that identify and remove bacteria, viruses, and cancer cells.

Question 5

A patient has a damaged thoracic duct. Which of the following is the most likely consequence?

Accepted Answer

Impaired lymph drainage from the left side of the body and both lower limbs

Question 6

Which of the following is a correct description of the flow of lymph through the lymphatic system?

Accepted Answer

Lymphatic capillaries → lymphatic collecting vessels (with valves) → lymphatic ducts → subclavian veins

Question 7

Which of the following best distinguishes between intracellular and extracellular fluid compartments?

Accepted Answer

Intracellular fluid is found within cells, while extracellular fluid is found outside of cells.

Question 8

Which of the following is NOT a secondary lymphoid organ or tissue?

Accepted Answer

Thymus

Question 9

A researcher is studying the process by which lymphocytes become immunocompetent. Which primary lymphoid organs should they focus on?

Accepted Answer

Red bone marrow and thymus

Question 10

Which of the following best describes the function of the spleen in the lymphatic system?

Accepted Answer

It filters blood, removes pathogens, and destroys old red blood cells.

Question 11

A patient has a genetic defect that prevents the formation of valves in their lymphatic collecting vessels. Which of the following is the most likely physiological consequence?

Accepted Answer

Backflow of lymph, leading to edema in tissues

Question 12

Which of the following equations correctly represents the relationship between total body water, intracellular fluid, and extracellular fluid?

Accepted Answer

$$Total\ Body\ Water = Intracellular\ Fluid + Extracellular\ Fluid$$

Question 13

Which of the following best describes the role of mucosal associated lymphoid tissue (MALT)?

Accepted Answer

It protects mucous membranes by trapping and removing pathogens entering the body.

Question 14

Which of the following is a correct statement about the cisterna chyli?

Accepted Answer

It is the most inferior portion of the thoracic duct and collects lymph from the lower body.

Question 15

A patient has a severe infection in the tonsils. Which type of lymphoid tissue is primarily affected?

Accepted Answer

Mucosal associated lymphoid tissue (MALT)

Question 16

Which of the following best explains why lymphatic flow is largely dependent on body movements?

Accepted Answer

Lymphatic vessels lack a central pump like the heart, so muscle contractions help propel lymph.

Question 17

Which of the following best describes the function of the thymus in the immune system?

Accepted Answer

It is the site of T lymphocyte proliferation and maturation.

Question 18

Which of the following is a correct sequence for the maturation and migration of lymphocytes?

Accepted Answer

Lymphoid stem cells divide in red bone marrow → T cells migrate to thymus for maturation → Mature lymphocytes move into blood and secondary lymphoid organs

Question 19

Which of the following best describes the location and function of lingual tonsils?

Accepted Answer

They are bumpy nodules on the posterior part (base) of the tongue and help protect against pathogens entering via the oral cavity.

Lymphatic System: Structure, Function, and Associated Organs

Guida di studio - Domande di pratica

Study guide - Flashcard