Chapter 2 Inflammation Flashcards
what is a spincter?
arterioles connect with cappilary beds
where does inflammation develop?
where the capiilary and post cappillary venules meets
what do the cappilary beds consist of?
basement membrane
what is the outermost layer of the basement membrane composed of?
endothelial cells
how do nutrients/ ion cross the open channels of the endothelial cells?
pinocytic vesicles
what pulls the fluid out of the cappilary beds?
blood hydrostatic pressure and tissue osomotic pressure
what pulls fluid into the cappilary beds?
tissue hydrostatic and blood osmotic pressure
what cause edema?
decrese blood osmotic pressure
what are the two component s of inflammation?
vascular and cellular
what is hyperemia?
increased blood flow
what is the function of a fibroblast?
in CT, produce the protein in the ECM and many of its fibers
what is a serous inflammation?
is a response to a mild injury in which only fluid is allowed to escape
examples: second degree burns and blisters
what is supperative inflammation (purulent)?
more serious injury, causing gretaer necrosis
continas a number of luekocytes/neutrophils
what is diffuse suppurative called?
celluitus
what is an abcess?
localized accumilation of pus
what is hemorragic inflammation?
injury of great intensity, capillary damage allows the escape of blood tissue?
what does “functio laesa” mean?
loss of function
what is gravity weight of exudate?
1.020
what is the gravity weight of transudate?
1.012
what are the two components of inflammation?
vasculature and cellular
what is hyperemia?
increased blood flow and increased permeability of blood vessels
what is exudate?
inflammatory fluid at the site of inflammation
what are characteristics of exudate?
protein rich fluid
plasma cells
WBC’s
space for healing damaged tissue
what is transudate?
refers to the perfusion of normal fluid portion of the blood inot the tissues; due to hydrostatic and osmotic pressure
what are components of vascular inflammation?
hyperemia and stasis
what is hyperemia?
increased blood flow
what is stasis?
is the slowing of blood flow causing blood to stop
what is filtration?
fluid is pushed out of the capillary into the tissue
what are characteristics associated with hyperemia?
tumor, rubor, increase in temperature, pain, and reduced function
what are the four benefits of fluid exudate in inflammation?
- dilution of toxins
- increase pan by swelling
- antibodies that are retained by the blood
- contetnt of protein which amplies response
what is the effect of albumin into the tissue?
increases osmotoc pressure inot the tissue
what is the function of fibrinogen?
mainatains homeostasis and prevents blood lose
what is laminar blood flow?
componets of the blood flow at the center of the vessel they become surrounded by the fluid portion
what is empyema?
accumilation of pus in the cavity
what two cavities is em[yema seen?
pleural and subdural empyema
