Question 1

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

Accepted Answer

They drain excess interstitial fluid and return it to the bloodstream.

Question 2

A blockage in a major lymphatic vessel would most likely result in which clinical condition?

Accepted Answer

Edema in the affected region

Question 3

Which equation best represents the net movement of fluid in lymphatic drainage?

Accepted Answer

$$J_v = L_p ( (P_c - P_i) - \sigma (\pi_c - \pi_i) )$$

Question 4

Which connective tissue type is most commonly found in lymphoid organs?

Accepted Answer

Reticular connective tissue

Question 5

A histological slide shows a network of reticular fibers and numerous lymphocytes. Which lymphoid structure is most likely being observed?

Accepted Answer

Lymphoid follicle

Question 6

Which of the following is a primary lymphoid organ?

Accepted Answer

Thymus

Question 7

What is the main difference between primary and secondary lymphoid organs?

Accepted Answer

Primary organs are sites of lymphocyte maturation; secondary organs are sites of immune response activation.

Question 8

Which of the following structures is NOT considered a secondary lymphoid organ?

Accepted Answer

Thymus

Question 9

A patient has a splenic rupture after trauma. Which of the following is a major function of the spleen that may be compromised?

Accepted Answer

Filtration of blood and removal of old erythrocytes

Question 10

Which region of the spleen is primarily responsible for immune functions?

Accepted Answer

White pulp

Question 11

If the lymphatic system fails to return proteins to the bloodstream, what effect would this have on plasma osmotic pressure?

Accepted Answer

Plasma osmotic pressure would decrease.

Question 12

Which of the following best describes the structure of a lymphoid follicle?

Accepted Answer

A spherical cluster of lymphocytes surrounded by reticular fibers

Question 13

Which of the following scenarios best illustrates the role of secondary lymphoid organs in immune response?

Accepted Answer

B cells encounter antigens and proliferate in lymph nodes.

Question 14

Which of the following is TRUE regarding lymphatic drainage?

Accepted Answer

Lymphatic vessels drain interstitial fluid into venous circulation.

Question 15

A patient with a deficiency in reticular fibers would most likely have impaired function in which organ?

Accepted Answer

Lymph node

Lymphatic System: Vessels, Tissues, and Organs

Study Guide - Practice Questions