Chapter 14 Lymphatic System and Immunity Flashcards
(37 cards)
Structure of lymphatic vessels are similar to what other type of vessel
veins
Spleen - size, structure, and cellular contents
Largest lymphatic - structure similar to lymph node - has a lot of macrophages
the two collecting ducts that drain the lymphatic trunks
thoracic duct & right lymphatic duct
how does increased hydrostatic pressure in tissue fluid affect the formation of lymph
Formation of lymph in the lymphatic capillaries increases due to increase in hydrostatic pressure in tissue fluid
Hilum
the region of a lymph node that blood vessels pass through
specific body defense mechanism
immunity
interferon
group of proteins that responds to the presence of viruses thus preventing their replication
most active phagocytic cells in circulating blood
neutrophils & monocytes
cells responsible for immunity
macrophages & lymphocytes
T-lymphocytes are responsible for what
cell mediated immunity
structural units in a lymph node
nodules
naturally acquired active immunity
the type of resistance that develops as a result of developing a disease
cause of the movement of lymph through lymphatic vessels
skeletal muscular activity
cells required in normal immune response
T cells & B cells
mast cells release during an allergen-antibody reaction
histamine
condition that may occur if lymphatic tissue is removed from an extremity
edema
Newborns receive IgA from where
breast milk
The HIV virus that causes AIDS may affect what type of cells?
T helper cells, macrophages, & DNA
mechanical barriers
The body’s first line of defense. (skin, hair & mucous membranes)
B-lymphocytes are responsible for what?
humoral immunity
What is the immune response directed toward in an autoimmune disease?
self substances
Examples of Autoimmune diseases
HIV, RA, Lupus, Insulin Dependent Diabetes
Definition of “specific” or adaptive response of immunity.
The third line of defense.
The hormone thymosin, secreted by the thymus, stimulates what cellular activity.
maturation of T cells
