A&P Immune Unit Quiz

Small secondary lymphoid organs, which cluster along lymphatic vessels, are termed ________.

• lymph follicles

• lymph nodes

• lacteals

• lymphatics

Which of the following would NOT be classified as a lymphoid organ?

• pancreas

• spleen

• tonsils

• Peyer's patches of the intestine

Which of the following correctly describes the pathway of lymph?

• lymphatic ducts to lymphatic trunks to lymphatic vessels to lymphatic capillaries

• lymphatic ducts to lymphatic capillaries to lymphatic vessels to lymphatic trunks

• lymphatic capillaries to lymphatic vessels to lymphatic trunks to lymphatic ducts

• lymphatic vessels to lymphatic trunks to lymphatic ducts to lymphatic capillaries

The thymus is most active during ________.

• fetal development

• childhood

• middle age

• old age

Antibodies that act against a particular foreign substance are released by ________.

• T lymphocytes

• plasma cells [B cells]

• lymph nodes

• medullary cords

When the lymphatic structures of a limb are blocked due to tumors, the result is ________.

• shrinkage of tissues distal in the limb to the blockage due to inadequate delivery of lymph

• severe localized edema distal to the blockage of that limb

• increased pressure in the lymphatics proximal in the limb to the blockage

• abnormally high lymph drainage from the distal region

Select the correct statement about lymph transport.

• Under normal conditions, lymph vessels are very high-pressure conduits.

• Lymph transport is faster than that occurring in veins.

• Lymph transport is only necessary when illness causes tissue swelling.

• Lymph transport depends on the movement of adjacent tissues, such as skeletal muscles.

Lymphoid tissue that appears as a swelling of the mucosa in the oral cavity is called a(n) ________.

• tonsil

• thymus

• Peyer's patch

• appendix

Peyer's patches are found in the distal portion of the ________.

• esophagus

• small intestine

• large intestine

• stomach

Which lymphoid organ atrophies as we age?

• tonsils

• appendix

• spleen

• thymus