Question 1

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

Accepted Answer

They absorb dietary fats from the small intestine and transport them as chyle.

Question 2

A patient presents with swollen, tender lymph nodes (buboes) after a bacterial infection. Which process is most likely occurring within the cortex of these lymph nodes?

Accepted Answer

Rapid proliferation of B cells forming germinal centers for antibody production.

Question 3

Which equation correctly represents the calculation of net filtration pressure ($$NFP) in $$the glomerulus?

Accepted Answer

$$NFP = (HP_{gc}) - (HP_{cs} + OP_{gc})$$

Question 4

Which of the following is TRUE regarding the difference between Class I and Class II MHC proteins?

Accepted Answer

Class I MHC proteins are found on all nucleated cells and present endogenous antigens, while Class II MHC proteins are found only on antigen-presenting cells and present exogenous antigens.

Question 5

During an inflammatory response, which sequence correctly represents the stages of inflammation?

Accepted Answer

Vasodilation, increased vascular permeability, phagocyte mobilization, tissue repair

Question 6

A patient with a deficiency in complement protein C3 would most likely have impaired:

Accepted Answer

Opsonization and formation of membrane attack complex (MAC)

Question 7

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

Accepted Answer

It does not directly fight antigens but is the site of T cell maturation.

Question 8

Which of the following best describes the role of helper T cells (CD4) in the immune response?

Accepted Answer

They activate B cells and cytotoxic T cells by releasing cytokines.

Question 9

Which of the following equations correctly represents the calculation of glomerular filtration rate ($$GFR) $$based on net filtration pressure ($$NFP) $$and filtration coefficient ($$K_f$$)?

Accepted Answer

$$GFR = K_f 	imes NFP$$

Question 10

Which of the following is a primary function of the spleen's red pulp?

Accepted Answer

Removal of old and damaged red blood cells from circulation

Question 11

A patient receives an injection of antibodies against rabies after exposure. This is an example of:

Accepted Answer

Artificially acquired passive humoral immunity

Question 12

Which of the following best describes the process of clonal selection in lymphocytes?

Accepted Answer

A lymphocyte binds to its specific antigen and proliferates, producing effector and memory cells.

Question 13

Which of the following is TRUE regarding the difference between cortical and juxtamedullary nephrons?

Accepted Answer

Juxtamedullary nephrons have longer nephron loops that extend deep into the medulla, allowing for greater concentration of urine.

Question 14

Which of the following is a benefit of fever during an infection?

Accepted Answer

It increases metabolic rate, enhancing tissue repair and inhibiting pathogen growth.

Question 15

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

Accepted Answer

Production of antibodies against pathogens

Question 16

Which of the following best describes the difference between afferent and efferent lymphatic vessels in a lymph node?

Accepted Answer

Afferent vessels bring lymph into the node, while efferent vessels carry filtered lymph away.

Question 17

Which of the following is a defensive mechanism of antibodies that involves binding to pathogens and preventing their attachment to host cells?

Accepted Answer

Neutralization

Question 18

Which of the following is TRUE regarding the composition of urine compared to filtrate?

Accepted Answer

Urine contains less glucose and amino acids than filtrate due to reabsorption.

Question 19

A patient with autoimmune disease is experiencing tissue damage due to the immune system attacking self-antigens. Which protein is most likely involved in presenting these self-antigens?

Accepted Answer

MHC proteins

Question 20

Which of the following is TRUE regarding the process of tubular reabsorption in the nephron?

Accepted Answer

It can occur via both paracellular and transcellular routes, allowing selective reabsorption of substances.

Lymphatic, Immune, and Urinary Systems: Comprehensive Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards