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Chapter 14: The Immune System & Lymphoid Organs

Which function is carried out by all lymphoid tissues and organs?

a. Filtration of lymph

b. Filtration of blood

c. Extramedullary hemopoiesis

d. Production of lymphocytes

e. Destruction of old erythrocytes

Which structure is partly encapsulated and covered by nonkeratinized stratified squamous epithelium?

a. Appendix

b. Lymph node

c. Palatine tonsil

d. Peyer’s patch

e. Thymic (Hassal’s) corpuscle

Which cell type gives rise to both memory and effector cells and is primarily associated with humoral immunity?

a. B lymphocyte

b. NK cell

c. Macrophage

d. T lymphocyte

e. Reticular cell

Recycling of iron and heme, the major complex containing iron, occurs most actively in which lymphoid organ(s)/tissue(s)?

a. Lymph nodes

b. Peyer’s patches

c. Tonsils

d. Spleen

e. Lymphatic vessels

Which description is true of all secondary (peripheral) lymphoid organs?

a. Capable of antigen-independent lymphopoiesis

b. Contain crypts

c. Contain epithelial-reticular cells

d. Lack connective tissue capsules

e. Contain lymphoid nodules

Which structure would be most heavily labeled by an immunohistochemical method targeting the CD8 surface antigen?

a. Germinal centers

b. Paracortex

c. Peyer’s patch

d. Sheathed arterioles

e. Splenic cords

A baby is born with a cleft palate and a condition called DiGeorge syndrome, which involves failure of third and fourth pharyngeal pouch derivatives to develop properly. The palate defect is corrected surgically, but regarding the pharyngeal pouch defect the parents are advised that the growing ...

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