The right lymphatic duct receives lymph from all of the following body regions, except the
answer
lower limb
question
Which lymphatic system organ involutes and becomes nonfunctional as aging occurs?
answer
thymus
question
Which of the following is not a function of the lymph node?
answer
Production of red blood cells
question
Pharyngeal tonsils are
answer
also called adenoids.
question
True or False: Lymphatic nodules are encapsulated lymphatic organs.
answer
FALSE
question
Match the lymphatic trunk with the major body region that it drains.
answer
Intestinal trunks:
Drain most abdominal structures
Lumbar trunks:
Drain lower limbs and pelvic organs
Jugular trunks:
Drain head and neck
Bronchomediastinal trunks:
Drain deep thoracic structures
Subclavian trunks:
Drain upper limbs, breasts, and thoracic wall
question
Match the lymphatic organ with its description.
answer
Thymus:
Site of T-lymphocyte maturation
Lymph node:
Filters Lymph
Spleen:
Filters blood; storage of platelets and erythrocytes
question
Lymph vessels reabsorb what fluid from the tissues and return it to the venous circulation?
answer
Interstitial fluid
question
The two collecting ducts that drain the lymphatic trunks are the
answer
thoracic duct and right lymphatic duct.
question
The formation of lymph increases as a result of
answer
increasing hydrostatic pressure in tissue fluid.
question
The primary functions of lymph include
answer
returning proteins to the bloodstream and transporting foreign particles to the lymph nodes.
question
The region of a lymph node through which blood vessels and nerves pass is called the
answer
hilum
question
The lymph nodes of the axillary region receive lymph mainly from the
answer
upper limb and mammary gland.
question
Which of the following is not part of a lymph node?
answer
Lymphatic capillaries
question
Cells in a lymph node that engulf and destroy damaged cells, foreign substances, and cellular debris are
answer
macrphages
question
Henry has a cut on his thigh that becomes infected. The lymph nodes in his __________ enlarge.
answer
inguinal region
question
The tissues of the spleen include
answer
red and white pulp
question
Lymphatic capillaries are found in all of the following tissues or areas except
answer
epithelia
question
Lymphatic capillaries are unique in that they depend on _________ to prevent the collapse of the lymphatic capillaries as pressure exerted by the interstitial fluid increases.
answer
anchoring filaments
question
T-lymphocytes are named according to the __________ gland where they become immunologically mature.
answer
thymus
question
The thymus continues to grow until a person reaches ________ , when it reaches a maximum weight of 30 to 50 grams.
answer
puberty
question
Other than red bone marrow, the spleen contains the largest single store of
answer
platelets
question
Besides filtering blood for foreign materials and phagocytosis of old, defective erythrocytes, the spleen is also involved in what other major function?
answer
Reservoir of platelets and erythrocytes
question
Peyer patches are large accumulations of MALT located only in the
answer
small intestine
question
Put the steps in the lymphatic pathway in the correct order.
