Question 1

Which immune cell is primarily responsible for monitoring and destroying cancerous cells in the body?

Accepted Answer

Cytotoxic T cells

Question 2

A patient with breast cancer may have their axillary lymph nodes examined. What is the main reason for this?

Accepted Answer

To assess the spread of cancer via lymphatic drainage

Question 3

Which structure is responsible for transporting absorbed dietary fats from the small intestine to the lymphatic system?

Accepted Answer

Lacteal

Question 4

What is the correct pathway for lymph fluid as it moves toward the heart?

Accepted Answer

Lymph capillaries → lymph nodes → lymphatic vessels → thoracic duct → subclavian vein

Question 5

Which immune system organ is located in the upper left quadrant of the abdomen and is responsible for filtering blood and recycling old red blood cells?

Accepted Answer

Spleen

Question 6

What is the primary function of the thymus in the immune system?

Accepted Answer

Maturation of T cells

Question 7

Which process describes the coating of an antigen with antibodies to enhance phagocytosis?

Accepted Answer

Opsonization

Question 8

What is the main difference between innate and adaptive (acquired) humoral immunity?

Accepted Answer

Innate immunity is non-specific and immediate, while adaptive immunity is specific and develops over time

Question 9

Which antibody is most abundant in the blood and is produced during secondary immune responses?

Accepted Answer

IgG

Question 10

A newborn baby is protected from antigens primarily by which mechanism?

Accepted Answer

Passive immunity via maternal IgG antibodies crossing the placenta

Question 11

Which of the following best describes the role of interferons in the immune response?

Accepted Answer

They signal neighboring cells to produce antiviral proteins

Question 12

Which process is used to quantify the immune response, such as measuring antibody levels after vaccination?

Accepted Answer

Serological assay

Question 13

Which type of disease is associated with rheumatoid arthritis?

Accepted Answer

Autoimmune disease

Question 14

What is the main purpose of MALT (mucosa-associated lymphoid tissue)?

Accepted Answer

To protect mucosal surfaces from pathogens

Question 15

Which immune system structures are associated with the pharynx area?

Accepted Answer

Tonsils

Question 16

Why are annual vaccinations recommended for diseases like influenza?

Accepted Answer

Because pathogens like influenza mutate frequently, requiring updated immunity

Question 17

Which statement best describes the difference between antibodies and antibiotics?

Accepted Answer

Antibodies are proteins produced by immune cells, while antibiotics are drugs that kill or inhibit bacteria

Question 18

Which of the following correctly matches MHC molecules with their corresponding T cell types?

Accepted Answer

MHC-I binds to CD8 cells; MHC-II binds to CD4 cells

Question 19

A patient is exposed to a new antigen. Which antibody is produced first during the primary immune response?

Accepted Answer

IgM

Question 20

Which antibody is most associated with allergic reactions and parasitic infections?

Accepted Answer

IgE

Study Guide Part 1: Chapter 20: The Lymphatic System and Immunity

Study Guide - Practice Questions

Study Guide - Flashcards