Ch 19 and 20
The differences in ventricle wall thickness allows the heart to push the same amount of blood (true or false)
True
It is the same amount of blood w/ more force from the left ventricle
Where are reticular cells found?
In underlying reticular CT of spleen, lymph nodes, and the thymus
What are the two main types of adaptive immunity?
Humoral and cell-mediated
What is the abnormal increase in interstitial fluid? (when filtration exceeds reabsorption)
Edema
What does angiogenesis mean?
The formation of new blood vessels
What type of cardiac muscle cells are found in the SA and AV nodes? (known as autorhythmic or pacemakers)
Conduction cells
What are 2 functions of the spleen?
filters blood, stores platelets, phagocytose microorganisms and old RBCs, and DCs present Ag to T and B cells to activate them
What molecule helps T cells recognize antigens presented on cell surfaces?
MHC molecules
What is caused by weak or leaky valves resulting in the backflow and pooling of blood?
Varicose veins
What are anastomes?
Alternate or collateral routes
What type of arteries have the greater ability to stretch and recoil and function as a pressure reservoir?
Elastic arteries
What is another name for them?
What is the function of dendritic cells?
Pinocytose interstitial fluid looking for anything foreign, they present the foreign antigen to T and B cells
Which molecules form a membrane attack complex (MAC) to lyse pathogens?
Complement proteins
Lymphedema
Sinusoids
Peripheral resistance is determined by what 3 things?
Blood viscosity, vessel length, and vessel lumen diameter
What specifically does the red pulp in the spleen function as?
Recycles RBC's and stores platelets
What types of antigens must be phagocytosed or pinocytosed, and their lysosomes contain MHC ll
What procedure is used to open up narrow or blocked arteries?
Angioplasty
What is the movement from interstitial fluid into capillaries?
Reabsorption
What is the movement of dissolved or suspended material in the same direction in response to pressure?
Bulk Flow
What is the function of the thymus gland?
Produces hormones (thymosin/ thymopoietin) and matures the T cells into immunocompetent or mature T cells
What is failure of cardiovascular system to deliver enough O2 and nutrients to the body?
Shock
What is the average number of people that will be infected by each infected person called?
R0 value (R-not)