Lymphatic and Immune System Chapter 21 Quiz

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What is the primary function of plasma cells?

To secrete soluble antibodies (correct)

To provide the first line of defense against viruses and some cancers

To destroy cells infected with intracellular pathogens

To secrete chemokines and recruit other immune cells

Where do B cells develop?

In the spleen

In the lymph nodes

In the thymus

In the red bone marrow (correct)

What is the primary function of Natural Killer cells?

To secrete antibodies

To secrete chemokines and recruit other immune cells

To provide the first line of defense against viruses and some cancers (correct)

To destroy cells infected with intracellular pathogens

Where is the thymus gland located?

Between the sternum and aorta Signup and view all the answers

What is the function of yellow bone marrow?

To provide energy storage in the form of fat cells Signup and view all the answers

What is the main function of the immune system?

Destroying pathogens Signup and view all the answers

Which part of the body has areas without lymph vessels?

Brain Signup and view all the answers

What is the main function of B cells in the immune system?

Produce plasma cells Signup and view all the answers

How does lymph typically move within the body's lymphatic vessels?

By muscle contractions, breathing, and body movements Signup and view all the answers

Where is the major staging area for the development of a critical immune response?

Lymph node Signup and view all the answers

Which type of leukocytes ingest pathogens?

Phagocytic cells Signup and view all the answers

Which lymphoid organ is known as the 'filter of the Blood' due to its extensive vascularization?

Spleen Signup and view all the answers

What is the function of lymph nodes in the immune system?

To remove debris Signup and view all the answers

Where are lymphoid nodules typically found within the body?

Digestive tracts Signup and view all the answers

Which type of cells are abundant in germinal centers within secondary lymphoid organs?

Plasma cells Signup and view all the answers

What can cause swelling in tonsils according to the text?

Active immune response to an infection Signup and view all the answers

Which type of vessels enter the lymph node to bring in lymph?

Afferent lymphatic vessels Signup and view all the answers

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

To stimulate phagocytosis at the site of infection Signup and view all the answers

What is the role of dendrites in the immune system?

To bring antigens to regional lymph nodes Signup and view all the answers

Which cells are responsible for stimulating antibody secretion?

B cells Signup and view all the answers

What is the process by which T cells that might attack the body's own cells are eliminated?

Negative selection Signup and view all the answers

Which type of T cells regulate the activity of macrophages and other T cells?

Helper T cells (Th1) Signup and view all the answers

What is the process by which a mature T cell recognizes an antigen and rapidly divides to mount a strong immune response?

Clonal expansion Signup and view all the answers

Which type of T cells are responsible for killing target cells by inducing apoptosis, similar to natural killer (NK) cells?

Cytotoxic T cells Signup and view all the answers

What is the process by which B cells that might attack the body's own cells are eliminated in the bone marrow?

Central tolerance Signup and view all the answers

Which class of antibody is associated with allergies and anaphylaxis, and causes mast cells to degranulate?

IgE Signup and view all the answers

What is the process by which antibody levels rise in the blood as pathogen levels decline, and vice versa?

Seroconversion Signup and view all the answers

What is the primary role of bronchus-associated lymphoid tissue (BALT)?

To provide an effective defense against inhaled pathogens Signup and view all the answers

Which of the following statements about barrier defenses is NOT true?

Normal flora on mucosal surfaces prevent the growth of pathogens Signup and view all the answers

Which of the following innate immune cells induces apoptosis in infected cells?

Natural killer cells Signup and view all the answers

What is the function of granzymes in the innate immune response?

To trigger apoptosis in infected cells by entering through holes created by perforins Signup and view all the answers

Which of the following is NOT a function of the inflammatory response?

Activation of the adaptive immune response Signup and view all the answers

What is the primary characteristic of the adaptive immune response?

It can specifically recognize and attack a wide variety of pathogens Signup and view all the answers

Which type of antigen is typically recognized by T cells on viruses?

Protein antigens Signup and view all the answers

What is the role of major histocompatibility complex (MHC) molecules in antigen presentation?

To present antigens on the cell surface for T cell recognition Signup and view all the answers

Which cells can express class II MHC molecules for antigen presentation?

Only professional antigen-presenting cells Signup and view all the answers

What is the primary difference between the primary and secondary adaptive immune responses?

The primary response has worse symptoms, while the secondary response is likely to eliminate the pathogen before symptoms appear Signup and view all the answers