Q: Which equation best represents the volume of interstitial fluid returned to the blood daily by the lymphatic system?

$$V_{lymph} = 3\ \text{L/day}$$

Question 1

Which of the following best describes the function of lymphatic capillaries in the tissue bed?

Accepted Answer

They collect interstitial fluid and larger particles, such as proteins and pathogens, from the tissue spaces.

Question 2

Which structural feature of lymphatic capillaries allows them to take up larger molecules and particles than blood capillaries?

Accepted Answer

Overlapping endothelial cells forming one-way minivalves

Question 3

A patient has swelling in their right upper limb and right side of the head. Which lymphatic duct is most likely blocked?

Accepted Answer

Right lymphatic duct

Question 4

Which of the following is TRUE regarding the flow of lymph through a lymph node?

Accepted Answer

Lymph enters through afferent vessels, passes through sinuses, and exits via efferent vessels at the hilum.

Question 5

Which of the following is a primary lymphoid organ?

Accepted Answer

Thymus

Question 6

What is the main function of the white pulp in the spleen?

Accepted Answer

Site of immune function, containing lymphocytes on reticular fibers

Question 7

Which equation best represents the volume of interstitial fluid returned to the blood daily by the lymphatic system?

Accepted Answer

$$V_{lymph} = 3\ 	ext{L/day}$$

Question 8

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

Accepted Answer

Direct maturation of T cells

Question 9

Which of the following statements about the thymus is correct?

Accepted Answer

It functions strictly in T lymphocyte maturation and does not directly fight antigens.

Question 10

Which of the following best describes the function of MALT (mucosa-associated lymphoid tissue)?

Accepted Answer

It prevents pathogens from penetrating mucosal surfaces.

Question 11

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

Accepted Answer

Active pumping by the heart

Question 12

Which cell type is responsible for producing antibodies in lymphoid tissue?

Accepted Answer

Plasma cells (derived from B cells)

Question 13

Which of the following is a major function of lymph nodes?

Accepted Answer

Cleansing lymph and immune system activation

Question 14

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

Accepted Answer

$$Q_{lymph} = \frac{\Delta P}{R}$$

Question 15

Which of the following is TRUE about the structure of lymphoid follicles?

Accepted Answer

They are solid, spherical bodies consisting of tightly packed lymphoid cells and reticular fibers.

Question 16

Which of the following best explains why lymphatic capillaries are absent from bone marrow?

Accepted Answer

Bone marrow is a site of blood cell production and does not require lymph drainage.

Question 17

Which of the following is a unique feature of the thymus compared to other lymphoid organs?

Accepted Answer

It contains thymic corpuscles in the medulla.

Question 18

Which of the following is a function of Peyer's patches in the small intestine?

Accepted Answer

Destruction of bacteria and generation of memory lymphocytes

Question 19

Which of the following best describes the role of reticular fibers in lymphoid tissue?

Accepted Answer

They provide a network-like support for immune cells.

Question 20

Which of the following is TRUE regarding tonsillar crypts?

Accepted Answer

They are invaginations of epithelium that trap bacteria and particulate matter, allowing immune cells to build memory.

The Lymphatic System and Lymphoid Organs: Structure, Function, and Clinical Relevance

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드