COPY: Chapter 21: The Lymphatic System

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

Filtering of the blood

Storage of blood cells

Production of antibodies

Nursery for T-cells (correct)

What is the primary function of the spleen?

Production of lymphocytes

Filtering of the blood

Storage of lymphocytes

All of the above (correct)

What is the term for the swelling of lymph nodes in response to a foreign antigen?

Innate immunity

Adaptive immunity

Lymphadenitis (correct)

Lymphadenopathy

What is the term for all diseases of the lymph nodes?

Lymphadenopathy Signup and view all the answers

What is the role of mucosa-associated lymphoid tissue (MALT) in the immune system?

Guarding against ingested or inhaled pathogens Signup and view all the answers

What is the characteristic of innate immunity?

It is non-specific and has no memory Signup and view all the answers

What is effective against extracellular viruses, bacteria, yeasts, protozoans, and non-cellular disease agents?

Adaptive Immunity Signup and view all the answers

What is produced as a result of infection in natural active immunity?

Antibodies produced by the individual's immune system Signup and view all the answers

What is the function of the C region in antibodies?

Determines the mechanism of the antibody's action Signup and view all the answers

What is the term for the production of antibodies after exposure to a pathogen through artificial means?

Artificial active immunity Signup and view all the answers

What is the term for the transfer of antibodies produced in another person or animal to an individual?

Artificial passive immunity Signup and view all the answers

What is the region of the antibody that combines with light chains to form the antigen-binding site?

V region Signup and view all the answers

What percentage of the fluid that is forced out of capillaries enters the lymphatic system?

15% Signup and view all the answers

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

To filter and monitor the lymph for foreign matter Signup and view all the answers

What is the purpose of the one-way flap in lymphatic capillaries?

To open and let fluid in when the pressure in the interstitial space is greater than the pressure inside the vessel Signup and view all the answers

What happens to the 3 liters of fluid that is not reabsorbed by the capillaries?

It becomes lymph and is picked up by lymphatic capillaries Signup and view all the answers

What is the function of the lymphatic system in maintaining homeostasis?

To return fluid that has been diverted back to the blood Signup and view all the answers

How many lymph nodes are found in the lymphatic system?

600-700 Signup and view all the answers

What is the primary function of IgA antibodies?

Providing protection against mucosal infections Signup and view all the answers

Which type of antibody is involved in allergic responses and triggers the release of histamine?

IgE Signup and view all the answers

What is the mechanism that allows the human immune system to produce a vast variety of antibodies?

Somatic recombination Signup and view all the answers

What type of immunity do natural killer cells provide?

Innate immunity Signup and view all the answers

Where are T-cells 'trained' after being 'born' in the bone marrow?

Thymus Signup and view all the answers

What is the purpose of testing T-cells with self-antigens?

To eliminate autoreactive T-cells Signup and view all the answers

What happens to self-reactive T-cells?

They become unresponsive Signup and view all the answers

Where do B-cells develop?

Entirely in the bone marrow Signup and view all the answers

What is the function of T-cells in cellular immunity?

To directly attack and destroy diseased cells Signup and view all the answers

What is the result of recognition in cellular immunity?

Antigen-presenting cells migrate to the lymph node Signup and view all the answers

What is the role of B-cells in humoral immunity?

To produce antibodies that bind to antigens Signup and view all the answers

What is the advantage of memory cells in cellular immunity?

They respond to antigens more quickly next time Signup and view all the answers

COPY: Chapter 21: The Lymphatic System - easy

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