Lymphatic System and Immunology Worksheet

What is the difference between a lymphocyte and a phagocyte?

• phagocytes engage in the innate immune response and specifically consume parasites while lymphocytic cells initiate the adaptive response and are specific to viruses

• phagocytes engage in the innate immune response and non-specifically consume pathogens while lymphocytic cells initiate the adaptive response and are specific in their response

• lymphocytes engage in the innate immune response while phagocytic cells in the adaptive response and are specific in their response

• phagocytes engage in the innate immune response and specifically target bacterial pathogens while lymphocytic cells initiate the adaptive response and are specific to viral infection

Lymphatic vessels are blind ended. What does this mean, and how is it different from blood capillaries?

• neither lymphatic vessels or blood vessels require a pump to propel contents of each circulatory system forward

• Lymphatic vessels have "dead ends" and do not have a pump and they do not interconnect the way that capillaries do

• Lymphatic vessels require a pump to push lymph the way that capillaries do

• Capillaries have "dead ends" and do not have a pump and they do not interconnect the way that lymphatic vessels do

Lymph is a clear fluid that circulates in the lymphatic system.

• True

• False

• It is a type of blood cell

• It is a digestive enzyme

What purpose do valves serve in the lymphatic vessels?

• to prevent backflow of lymph since there is no other force pushing lymph forward in the vessels other than increasing pressure from increasing uptake of interstitial fluid

• to prevent backflow of blood since there is no other force pushing lymph forward in the vessels other than increasing pressure from increasing uptake of interstitial fluid

• to ensure the lymph is always directed towards lymph nodes

• to ensure the lymph in vessels can move in both directions – forward and backwards since there is no other force pushing lymph forward in the vessels

The SARS COV-2 ANTIGEN test helps people screen for the virus by testing for what viral structures?

• internal proteins

• internal genome

• surface proteins

• reverse transcriptase (viral protein aids in viral replication)

The primary lymphoid organs are the ________, lymph nodes, tonsils, and thymus gland.

• spleen

• liver

• pancreas

• kidney

An antigen is a surface protein, an antibody is produced in a highly specific response to the invading pathogens.

• True

• False

Lymphocytic cells phagocytize pathogens primarily.

• True

• False

T cells secrete antibodies.

• True

• False

Which of the following serves as a valuable landmark for the lymphatic system and typically receives lymph from the right and left lumbar trunks, the intestinal trunk, and some of the lower intercostal vessels?

• cisterna chyli

• spleen

• right lymphatic duct

• thoracic duct