All in Vein
(Immune Vessels & Cells)
All the Right Nodes (Lymphoid Organs)
Impenetrable Defenses
(The Overall Immune System)
Disordered Health (Immune Disorders)
Miscellaneous Immune
100

These tiny vessels are found between tissue cells and blood capillaries, and are very permeable

Lymphatic Capillaries

100

This lymphatic organ functions primarily during childhood, and disappears by adulthood

The Thymus

100

The names of two types of mechanisms that defend the body against microbes which together make up the Immune System

Innate & Adaptive Systems

100

These are hypersensitivities to specific substances, from pollen and pets to chemicals and foods, that trigger strong immune responses

Allergies

100

This fluid travels through lymphatic vessels and is returned to the blood

Lymph

200

The compression and relaxation of these move lymph throughout the body

Skeletal Muscles

200

These small masses of tissue in the throat trap and remove bacteria and foreign particles

The Tonsils

200

The two main parts of the first line of defense in the innate body defenses

The surface membrane barriers of the skin's physical barrier and acid mantle. 

200

This is a rare, severe, and extremely strong response of the immune system to a substance from the 100 category in this topic

Anaphylactic Shock

200

This response is nonspecific and triggered whenever body tissues are injured

The Inflammatory Response
300

In the lymph nodes, these cells engulf and destroy bacteria, viruses, and other foreign substances

Macrophages

300

These collections of tissue look like tonsils but are located in the wall of the small intestine, and aid in capturing and destroying harmful bacteria

Peyer's Patches

300

These innate defense cells are aggressive lymphocytes that roam the body and lyse cancer cells and virus-infected body cells

Natural Killer (NK) Cells

300

The name for a group of diseases where the body attacks its own tissues, thinking that they are foreign

Autoimmune Diseases

300

These cells confront pathogens that make it past the body's mechanical barrier in the innate defense system

Phagocytes

400

The three clusters of lymph nodes are located in the inguinal, cervical, and this region

Axillary

400

This small organ is located on the left side of the body, just below the diaphragm, and cleans the blood of bacteria and old blood cells

The Spleen

400

This term refers to antibody-mediated immunity provided by our immune proteins present in the body's fluids

Humoral Immunity

400

These conditions occur when the body is unable to produce immune cells or the function of those cells is impaired

Immunodeficiencies

400

This medical treatment, required throughout childhood and strongly recommended each year, contributes to our body's adaptive immune systems by training our immune system to recognize various pathogens

Vaccinations

500

In a lymph node, this is where macrophages are located

The Medulla

500

All lymphoid organs have a lot of this type of connective tissue as well as lymphocytes

Reticular connective tissue

500

These substances are capable of provoking an immune response when they are recognized as nonself

Antigens

500

This chronic immune system disease is caused by the human immunodeficiency virus, was a much feared epidemic of the 1980s, and is now treatable

AIDS

500
A type of organ transplant where tissue is obtained from an unrelated person; the most common type of transplant that has a high chance of rejection

Allograph

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