Question 1

Which of the following best describes the primary function of the lymphatic system?

Accepted Answer

Returning interstitial fluid to the bloodstream and providing immune defense

Question 2

Which structure is responsible for filtering lymph and housing lymphocytes that respond to pathogens?

Accepted Answer

Lymph node

Question 3

A patient has a blockage in their thoracic duct. Which of the following is most likely to occur?

Accepted Answer

Edema in the lower limbs and left side of the body

Question 4

Which of the following is NOT a function of the spleen?

Accepted Answer

Production of insulin

Question 5

Which of the following best describes the flow of lymph through the body?

Accepted Answer

Lymphatic capillaries → lymphatic vessels → lymph nodes → lymphatic trunks → lymphatic ducts → subclavian veins

Question 6

Which of the following immune cells mature in the thymus?

Accepted Answer

T cells

Question 7

A patient with a splenectomy (removal of the spleen) is at increased risk for which of the following?

Accepted Answer

Increased susceptibility to infections

Question 8

Which of the following is a primary lymphatic organ?

Accepted Answer

Thymus

Question 9

Which of the following best explains why lymphatic capillaries are highly permeable?

Accepted Answer

They have overlapping endothelial cells that function as one-way mini-valves

Question 10

Which of the following is a correct equation for Starling’s Law of the Capillaries, which helps explain lymph formation?

Accepted Answer

$$J_v = K_f \left[ (P_c - P_i) - \sigma (\pi_c - \pi_i) \right]$$

Question 11

Which of the following scenarios would most likely result in edema?

Accepted Answer

Obstruction of lymphatic drainage

Question 12

Which of the following is a secondary lymphatic organ?

Accepted Answer

Lymph node

Question 13

Which of the following best describes the role of the right lymphatic duct?

Accepted Answer

Drains lymph from the right upper limb, right side of the head, and right thorax into the right subclavian vein

Question 14

Which of the following is a function of lymph nodes?

Accepted Answer

Filtration of lymph and activation of immune responses

Question 15

Which of the following best explains why lymph flows in one direction?

Accepted Answer

Presence of valves in lymphatic vessels

Question 16

Which of the following is the main mechanism by which lymph is moved through lymphatic vessels?

Accepted Answer

Skeletal muscle contraction and respiratory movements

Question 17

Which of the following would most likely occur if the lymphatic system failed to function properly?

Accepted Answer

Accumulation of interstitial fluid and increased risk of infection

Question 18

Which of the following is a unique feature of lymphatic capillaries compared to blood capillaries?

Accepted Answer

They have closed ends

Question 19

Which of the following best describes the function of lacteals in the small intestine?

Accepted Answer

Absorption of dietary fats

Question 20

Which of the following is the correct sequence for the maturation of T lymphocytes?

Accepted Answer

Red bone marrow → thymus → peripheral tissues

The Skeletal System: Bone Growth, Remodeling, and Repair

Study Guide - Practice Questions