True false ch 20

Created by KatieHopper 

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patches are clusters of lymphoid
tissue found primarily in the large intestine.

False

The lymphatic capillaries function to absorb the excess protein-containing interstitial fluid and return it to the bloodstream.

True

Lymph always flows away from the heart.

False

Lymphatic capillaries are permeable to proteins.

True

Digested fats are absorbed from the intestine by the lymph capillaries.

True

Chyle is delivered to the blood via the lymphatic system.

True

All lymphoid organs develop from mesoderm.

False

About 3 liters of fluid are lost to the tissue spaces every 24 hours and are returned to the bloodstream as lymph.

True

Because lymph vessels are very low-pressure conduits, movements of adjacent tissues are important in propelling lymph through the lymphatics.

True

Lymphoid tissue is mainly reticular connective tissue.

True

Lymphocytes reside temporarily in lymphoid tissue, then move to other parts of the body.

True

All the lymphoid organs are well developed before birth.

False

An infected lymph gland is called a bubo.

True

When tissues are inflamed, lymphatic capillaries develop openings that permit uptake of large particles such as cell debris, pathogens, and cancer cells.

True

The cisterna chyli collects lymph from the lumbar trunks draining the upper limbs and from the intestinal trunk draining the digestive organs.

False

If even a small part of the spleen is left in a ten-year-old child, it will most likely regenerate itself.

True

All lymphatic organs are composed of epithelial tissue.

False

The most important role of the spleen is to provide a site for lymphocyte proliferation and immune surveillance and response.

False

The simplest lymphoid organs are the lymph nodes.

False

A transfusion reaction is a subacute hypersensitivity to foreign red blood cells.

True

Somatic recombination by B cells allows each B cell to form its own unique antibody genes.

False

Antigens can be complete or incomplete.

True

Anaphylactic shock can result from an immediate hypersensitivity where the allergen enters the blood.

True

Cellular ingestion and destruction of particulate matter is called phagocytosis.

True

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