Chapter 20: The Lymphatic System and Lymphoid Organs and Tissues

Blood plasma and lymph are identical except for their respective locations in the body.

False

What part of the lymphatic system is most closely associated with capillary beds?

lymphatic capillaries

How are collecting lymphatic vessels different from veins?

Collecting lymphatic vessels have more internal valves than do veins.

All lymph is eventually returned to circulation via the __________.

subclavian veins

Which of the following is NOT a function of lymphatic vessels?

delivery of nutrients to tissues

macrophage

phagocytic cell

plasma cell

produces antibodies

reticular cell

fibroblast-like cell that produces the reticular fiber stroma

dendritic cell

captures antigens and brings them back to lymph nodes

Reticular connective tissue is found in all lymphoid organs and tissues.

False

Which of the following is NOT a characteristic of lymph nodes?

Lymph nodes produce lymph.

Which of the following lists the correct order of lymph flow through the lymph node?

afferent vessel, subcapsular sinus, medullary sinuses, efferent vessel

Which of the following is NOT a role of the spleen?

to serve as a site of T cell maturation

Choose the true statement about the thymus.

After puberty, the thymus begins to decrease in size.

The main role of the tonsils is to __________.

gather and remove pathogens entering through the pharynx

Which of the following is NOT a part of the mucosa-associated lymphoid tissue (MALT)?

the spleen

EXCEPT for the __________, which is/are an endodermal derivative, the lymphoid organs develop from mesodermal mesenchymal cells.

thymus