chap 21

What primary lymphatic organ, found in the proximal epiphyses of long bones, is the site of maturation for B-cells?

red bone marrow

Which of the following is not a function of the lymphatic system?

maintain normal blood pH

What lymphatic organs are small, oval organs up to 1 inch in diameter filter lymph and house macrophages and lymphocytes, and are primarily located in 3 regions?

lymph nodes

Where is lymph drained back into our cardiovascular system?

subclavian veins

Which primary lymphatic organ, found deep to the sternum, is the site of maturation for T-cells?

thymus

Which secondary lymphatic organ removes worn-out red blood cells and initiates an immune response to blood-borne pathogens?

spleen

which is true of lymphatic vessels?

they are similar to veins because they have valve

Which of the following are the smallest lymphatic vessels that collect interstitial fluid (as lymph) from the tissues?

lymphatic capillaries

Which of the following are the lymphatic vessels of the small intestine that transport dietary lipids?

lacteals

What type of lymphocytes perform immunological surveillance as part of the innate immune system?

Natural killer cells

What type of lymphocytes produce antibodies to foreign cells?

plasma cells

What major lymphatic vessel drains the right side of the body superior to the diaphragm?

right lymphatic duct

The lymphatic system functions to maintain normal blood volume by ____.

transporting excess interstitial fluid as lymph to the cardiovascular system

What tonsil is located in the superior nasopharynx?

adenoids/pharyngeal tonsil

What type of lymphocytes provide cell-mediated immunity by destroying infected or abnormal (cancerous) cells?

Cytotoxic T-cells

What tonsil is located on the base of the tongue?

lingual tonsils

Which of the following are lymphatic vessels located around skeletal muscles and visceral organs?

deep lymphatics

____ are large lymphoid nodules located in walls of the pharynx.

Tonsils

What type of lymphocytes support the immune response by activating other immune cells?

Helper T-cells

which of the following are lymphatic vessels located in the subcutaneous layer?

superficial lymphatics

What tonsil is located on each side of the posterior oral cavity?

palatine tonsils

____ are the lymphatic vessels of the small intestine that transport emulsified lipids.

Lacteals

Which of the following is not one of the 3 major areas where we find lymph nodes?

umbilical

What major lymphatic vessel drains the left side of the body superior to the diaphragm and entire body inferior to the diaphragm?

thoracic duct

Where does the lymphatic network begin?

 In capillary beds

Which of the following are functions of the lymphatic system?

Maintain normal blood volume, production and development of lymphocytes, maintaining the composition of interstitial fluid, screening tissues and fluids for pathogens or abnormal cells