Question 1

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

Accepted Answer

Production, maintenance, and distribution of lymphocytes to fight body threats through physical and chemical actions

Question 2

A patient presents with swelling, redness, heat, and pain at an injury site. Which process is most likely occurring, and which chemicals are primarily responsible?

Accepted Answer

Inflammation; histamines and heparin

Question 3

Which cell type is responsible for direct attack of foreign cells and is classified as a cytotoxic T cell?

Accepted Answer

CD8 T cell

Question 4

If a patient has a deficiency in helper T cells, which of the following is most likely to occur?

Accepted Answer

Impaired stimulation of both T and B cells, leading to weakened adaptive immunity

Question 5

Which of the following best describes the role of the thymus in immunity?

Accepted Answer

Secretes thymosins to stimulate cell division and maturation of T cells

Question 6

A patient with HIV is most likely to experience which of the following changes in their immune system?

Accepted Answer

Decrease in helper T cells

Question 7

Which of the following is NOT a component of the lymphatic system?

Accepted Answer

Red bone marrow

Question 8

Which of the following statements about innate immunity is correct?

Accepted Answer

It provides general barriers and defenses against pathogens, regardless of their identity

Question 9

Which of the following best describes the function of interferons?

Accepted Answer

Cytokines released by activated lymphocytes, macrophages, and infected tissue cells to coordinate local activities

Question 10

A patient develops an abscess at an injury site. Which of the following best describes an abscess?

Accepted Answer

Pus enclosed in a tissue space

Question 11

Which of the following equations best represents the relationship between lymphatic fluid return and blood volume?

Accepted Answer

$$\Delta V_{blood} = V_{lymph\,return}$$

Question 12

Which of the following is a function of NK (natural killer) cells?

Accepted Answer

Directly attacking and destroying abnormal cells

Question 13

Which lymphatic duct drains lymph from the lower and left side of the body?

Accepted Answer

Thoracic duct

Question 14

A patient is exposed to a pathogen and develops a rapid allergic reaction. Which type of hypersensitivity is this?

Accepted Answer

Immediate hypersensitivity

Question 15

Which of the following best describes the difference between cell-mediated and antibody-mediated immunity?

Accepted Answer

Cell-mediated immunity involves T cells fighting pathogens inside living cells, while antibody-mediated immunity involves B cells producing antibodies

Question 16

Which of the following is a plausible consequence of slow phagocyte activity in immune complex disorders?

Accepted Answer

Accumulation of immune complexes leading to tissue damage

Question 17

Which of the following best describes the role of pyrogens in fever?

Accepted Answer

Proteins that reset the temperature center in the hypothalamus, elevating body temperature

Question 18

Which of the following equations best represents the effect of pyrogens on body temperature?

Accepted Answer

$$T_{body\,new} = T_{hypothalamus\,reset}$$

Question 19

Which of the following best explains why AIDS patients are more susceptible to opportunistic infections?

Accepted Answer

They lack sufficient helper T cells to gather cytotoxic cells for an effective immune response

Chapter 14: The Lymphatic System and Immunity – Study Notes

Study Guide - Practice Questions

Study Guide - Flashcards