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24 terms

True false ch 20

STUDY
PLAY
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