Which type of T cell secretes cytokines that regulate the activity of macrophages and other T cells?

Correct answer: Th1 cells

Explanation

This question tests the knowledge of the specific functions of the different subsets of helper T cells, distinguishing between Th1 and Th2 cells.

Other questions

Question 1

What is the approximate number of lymph nodes found throughout the human body?

Question 2

Which of the following describes the function of the spleen?

Question 3

Which cell type is part of the innate immune response and kills target cells by inducing apoptosis using perforins and granzymes?

Question 4

What is the process called where an antibody or antimicrobial protein tags a pathogen for phagocytosis?

Question 5

According to the chapter, approximately how many liters of plasma are released into the interstitial space of tissues each day due to capillary filtration?

Question 6

Which structure is a sac-like chamber that receives lymph from the lower abdomen, pelvis, and lower limbs?

Question 7

What are the four characteristics of inflammation as described in the hallmark of the innate immune response?

Question 8

In T cell development, what is the process called where T cells that bind to self-antigens are killed by apoptosis?

Question 9

Which class of antibody is the largest, usually the first made during a primary response, and is a pentamer?

Question 10

What is the term for the reciprocal relationship between rising antibody levels and declining virus levels in the blood during an infection?

Question 11

Type I hypersensitivity, such as a severe allergy to peanuts, is mediated by which class of antibody?

Question 12

Graft-versus-host disease is a complication primarily associated with which type of medical procedure?

Question 13

What is the primary function of the thymus gland?

Question 14

The thoracic duct drains lymph from all of the following areas EXCEPT:

Question 15

Which type of professional antigen-presenting cell is primarily responsible for bringing antigens to regional draining lymph nodes to initiate a T cell response?

Question 16

What is the term for the process that eliminates immature B cells in the bone marrow that bind strongly to self-antigens?

Question 17

Which antibody class is the only one that can cross the placenta to protect the developing fetus?

Question 18

Delayed-type hypersensitivity (Type IV), such as the tuberculin test reaction, is primarily mediated by which cells?

Question 19

An immature T cell, upon leaving the bone marrow to mature in the thymus, is referred to as what?

Question 20

Mucosa-associated lymphoid tissue (MALT) is found in all of the following locations EXCEPT the:

Question 21

Which of the following is a primary lymphoid organ?

Question 22

What is the function of the fas ligand expressed on Natural Killer (NK) cells?

Question 23

The human body is estimated to contain approximately how many lymphocytes?

Question 24

Which of the following is a characteristic of the adaptive immune response, but not the innate immune response?

Question 26

The severe, systemic allergic reaction that can be fatal within 20 to 30 minutes and is treated with epinephrine is known as what?

Question 27

Which two classes of antibody can function as the antigen receptor on the surface of naïve B cells?

Question 28

Peyer's patches are a type of MALT found in which location?

Question 29

What is the process by which a B cell changes the class of antibody it produces, such as from IgM to IgG, without changing its antigen specificity?

Question 30

In a secondary adaptive immune response, compared to a primary response, the response is:

Question 31

What is the term for an antigen that can activate a B cell without cytokine help from a T cell, typically due to a structure of repeated carbohydrate moieties?

Question 32

Which of the following is NOT listed as a barrier defense of the immune system?

Question 33

What is the primary cause of age-related immune deficiencies, known as immunosenescence?

Question 34

What is the medical term for the condition where a mother negative for Rh antigen develops antibodies against her Rh-positive fetus?

Question 35

T cells recognize antigens only when they are presented on the surface of a cell in association with which type of molecule?

Question 36

What is the primary function of Helper T cells (Th) in the adaptive immune response?

Question 37

Type III hypersensitivity reactions, such as in systemic lupus erythematosus, are caused by what mechanism?

Question 38

The milky fluid called chyle, containing dietary lipids and lipid-soluble vitamins, is transported from the small intestine via which structures?

Question 39

Which of the following is NOT a function of the complement system cascade?

Question 40

What is the process called where an individual's immune system develops resistance to a pathogen after being exposed to a killed or weakened version of it, such as in a vaccine?

Question 41

Intracellular antigens, such as those from viruses, are typically processed and presented on which class of MHC molecules?

Question 42

Which autoimmune disease involves antibodies that cross-react with heart myosin following a Streptococcus infection?

Question 43

What is the primary function of the tonsils?

Question 44

Severe combined immunodeficiency disease (SCID) is a serious inherited condition because it affects which arms of the adaptive immune response?

Question 45

Which soluble mediator of the innate immune response is a signaling molecule that allows cells to communicate over short distances?

Question 46

The memory of a primary adaptive immune response is held by which two cell types?

Question 47

The enzyme lysozyme, which is rich in saliva, provides a barrier defense by what mechanism?

Question 48

Human Immunodeficiency Virus (HIV) primarily compromises the immune system by targeting which cell type?

Question 49

What is the term for a B cell that has differentiated in response to antigen binding and is specialized to secrete soluble antibodies?

Question 50

What is the primary role of eosinophils in the immune response?