Question 1

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

Accepted Answer

Return interstitial fluid to the bloodstream and provide immune defense

Question 2

Lymph is most similar in composition to which of the following fluids?

Accepted Answer

Interstitial fluid

Question 3

Which mechanism is primarily responsible for the movement of lymph through lymphatic vessels?

Accepted Answer

Contraction of skeletal muscles and pressure changes during breathing

Question 4

A patient presents with swollen lymph nodes in the neck. Which term best describes the structure and function of these nodes?

Accepted Answer

They filter lymph and house immune cells

Question 5

Which lymphoid organ is responsible for the maturation of T lymphocytes?

Accepted Answer

Thymus gland

Question 6

Which of the following best differentiates non-specific resistance from immunity?

Accepted Answer

Non-specific resistance includes barriers and inflammation, while immunity involves specific recognition and memory

Question 7

Which chemical system is released by virus-infected cells to protect neighboring cells from viral infection?

Accepted Answer

Interferon

Question 8

A person receives a vaccine containing inactivated pathogens. Which type of immunity is being acquired?

Accepted Answer

Artificially acquired active immunity

Question 9

Which immunoglobulin class is most abundant in blood plasma and is responsible for secondary immune responses?

Accepted Answer

IgG

Question 10

A patient receives a kidney transplant from a genetically unrelated donor. Which term best describes this type of graft?

Accepted Answer

Allograft

Question 11

Which cell type is primarily responsible for antibody production in the humoral immune response?

Accepted Answer

Plasma cell

Question 12

Which of the following best describes the role of Major Histocompatibility Complex (MHC) Class I molecules?

Accepted Answer

Present endogenous antigens to cytotoxic T cells

Question 13

A child is born with severe combined immunodeficiency (SCID). Which of the following best explains the pathophysiology of this condition?

Accepted Answer

Defective development of both B and T lymphocytes

Question 14

Which hypersensitivity reaction is characterized by rapid onset, IgE mediation, and symptoms such as anaphylaxis?

Accepted Answer

Type I (anaphylactic)

Question 15

Which term refers to the ability of an antigen to provoke an immune response?

Accepted Answer

Immunogenicity

Question 16

A person receives antibodies from a snake antivenom injection. Which type of immunity is this?

Accepted Answer

Artificially acquired passive immunity

Question 17

Which of the following equations best represents the filtration of fluid from blood capillaries into lymphatic capillaries?

Accepted Answer

$$ Net\ Filtration\ Pressure = (HP_{capillary} - HP_{interstitial}) - (OP_{capillary} - OP_{interstitial}) $$

Question 18

Which of the following best describes the process of tolerance in the immune system?

Accepted Answer

The immune system ignores self-antigens to prevent autoimmunity

Question 19

Which cell type is involved in cell-mediated immunity and directly destroys infected or abnormal cells?

Accepted Answer

Cytotoxic T lymphocyte

Question 20

A patient develops a delayed skin reaction after exposure to poison ivy. Which hypersensitivity type is involved?

Accepted Answer

Type IV (delayed)

The Lymphatic System and Immunity: Comprehensive Study Notes

Study Guide - Practice Questions