ASU BIO 202 Lymphatic System
Define pathogenic - answer Disease causing
Contrast the immune and lymphatic systems - answer Immune system: Cell population
defends body from disease Lymphatic: Network of organs and vein like vessels
List the functions of the lymphatic system - answer Fluid recovery, immunity, lipid
absorption
Describe edema - answer lymphedema and elephantiasis, Edema: Accumulation of fluid
in tissuesLymphedema: Localized bodily swelling due to fluid accumulation in LYMPH
Elephantiasis: Obstruction of lymphatic vessels common in legs
Describe the components of the lymphatic system - answerLymph, lymphatic vessels,
organs, tissues
Name the 6 lymphatic trunks and 2 collecting ducts - answer Trunks: Subclavian,
jugular, Broncho mediastinal, intercostal, intestinal, lumbar
Ducts: Right lymphatic - answerthoracic
The right lymphatic duct drains - answerRIGHT side of head and neck, Broncho
mediastinal lymphatic trunks
The Thoracic duct drains - answerLEFT side of arm, legs, and lower than diaphragm
Describe the mechanisms of lymph flow - answerFlow is at a LOW pressure and speed
Valves prevent one-way flow Skeletal muscle and Thoracic pumps aid in flow
The rapidly flowing bloodstream in subclavian veins... - answerDraws blood into it
Describe and list examples of lymphatic (lymphoid) tissue - answerDiffuse, lymphatic
nodules, Peyer Patches
Diffuse Lymphatic tissues: - answerIs the simplest form, lymphocytes are scattered and
prevent body passages to be open to the exterior environment?
Lymphatic Nodules: - answerAre dense masses of macrophages and lymphocytes that?
Congregate as a response to a pathogen - answer
, Peyer Patches: - answerDense clusters of lymphocytes in the ileum Distinguish
between primary and secondary lymphatic organs
List and describe the primary lymphatic organs - answerPrimary: red bone marrow and
thymusSecondary: Lymph nodes, tonsils, and spleen Site where T and B cells become
immunocompetent
Describe the function of lymph nodes and the types of cells associated with them -
answerFilter lymph and act as T and B cell activation
Cells associated include B and T cells - answer
Name the 5 tonsils and describe their locations - answerPalatine: posterior margin of
oral cavity Lingual: pair at root of tongue Pharyngeal: single of tonsil on the back wall of
nasopharynx Tonsillar crypts Lymphatic nodules
Define tonsillitis - answerInflammation of tonsils
Explain why it is not a good idea to routinely remove the tonsils - answerBecause the
tonsils aid in preventing infection and help prevent harmful microbes from entering our
bodies
Describe the location - answerfunction and structure of the spleen, Inferior to diaphragm
dorsal to stomach Serves as blood production (in fetus), blood reservoir, RBC disposal,
immune reactions Structure highly vascular with a red and white pulp
List the 3 lines of defenses against pathogens - answerSkin, nonspecific, immune
system
Specific defense - answerResults from prior exposure protects against a SPECIFIC
pathogen, is our immune system
Nonspecific defense - answerBroadly effective, no prior exposure, external body
barriers
Describe the external barriers that serve for nonspecific defense against pathogens -
answerSkin, mucus membranes provide environments that are not ideal for bacteria to
live
Keratin - answerMakes our skin rough and undesirable for bacteria to live
Defensins - answerPeptides that attack microbes
Lactic acid - answerComponent of our sweat, many microbes also cannot live here
Mucus - answerSticky prevents microbes from adherence
Define pathogenic - answer Disease causing
Contrast the immune and lymphatic systems - answer Immune system: Cell population
defends body from disease Lymphatic: Network of organs and vein like vessels
List the functions of the lymphatic system - answer Fluid recovery, immunity, lipid
absorption
Describe edema - answer lymphedema and elephantiasis, Edema: Accumulation of fluid
in tissuesLymphedema: Localized bodily swelling due to fluid accumulation in LYMPH
Elephantiasis: Obstruction of lymphatic vessels common in legs
Describe the components of the lymphatic system - answerLymph, lymphatic vessels,
organs, tissues
Name the 6 lymphatic trunks and 2 collecting ducts - answer Trunks: Subclavian,
jugular, Broncho mediastinal, intercostal, intestinal, lumbar
Ducts: Right lymphatic - answerthoracic
The right lymphatic duct drains - answerRIGHT side of head and neck, Broncho
mediastinal lymphatic trunks
The Thoracic duct drains - answerLEFT side of arm, legs, and lower than diaphragm
Describe the mechanisms of lymph flow - answerFlow is at a LOW pressure and speed
Valves prevent one-way flow Skeletal muscle and Thoracic pumps aid in flow
The rapidly flowing bloodstream in subclavian veins... - answerDraws blood into it
Describe and list examples of lymphatic (lymphoid) tissue - answerDiffuse, lymphatic
nodules, Peyer Patches
Diffuse Lymphatic tissues: - answerIs the simplest form, lymphocytes are scattered and
prevent body passages to be open to the exterior environment?
Lymphatic Nodules: - answerAre dense masses of macrophages and lymphocytes that?
Congregate as a response to a pathogen - answer
, Peyer Patches: - answerDense clusters of lymphocytes in the ileum Distinguish
between primary and secondary lymphatic organs
List and describe the primary lymphatic organs - answerPrimary: red bone marrow and
thymusSecondary: Lymph nodes, tonsils, and spleen Site where T and B cells become
immunocompetent
Describe the function of lymph nodes and the types of cells associated with them -
answerFilter lymph and act as T and B cell activation
Cells associated include B and T cells - answer
Name the 5 tonsils and describe their locations - answerPalatine: posterior margin of
oral cavity Lingual: pair at root of tongue Pharyngeal: single of tonsil on the back wall of
nasopharynx Tonsillar crypts Lymphatic nodules
Define tonsillitis - answerInflammation of tonsils
Explain why it is not a good idea to routinely remove the tonsils - answerBecause the
tonsils aid in preventing infection and help prevent harmful microbes from entering our
bodies
Describe the location - answerfunction and structure of the spleen, Inferior to diaphragm
dorsal to stomach Serves as blood production (in fetus), blood reservoir, RBC disposal,
immune reactions Structure highly vascular with a red and white pulp
List the 3 lines of defenses against pathogens - answerSkin, nonspecific, immune
system
Specific defense - answerResults from prior exposure protects against a SPECIFIC
pathogen, is our immune system
Nonspecific defense - answerBroadly effective, no prior exposure, external body
barriers
Describe the external barriers that serve for nonspecific defense against pathogens -
answerSkin, mucus membranes provide environments that are not ideal for bacteria to
live
Keratin - answerMakes our skin rough and undesirable for bacteria to live
Defensins - answerPeptides that attack microbes
Lactic acid - answerComponent of our sweat, many microbes also cannot live here
Mucus - answerSticky prevents microbes from adherence
