Week 4: Inflammation and wound healing Flashcards
Response of vascular system to cell
injury including infection
Inflammation
redness in the site of
inflammation
Rubor
swelling at the site of
inflammation
Tumor
heat at the site of the
inflammation
Calor
pain at the site of inflammation
Dolor
loss of
function, development of scab where
there is thickening of tissue, leading to
numbness
Function laesa – Virchow
accumulation of fluid in the site of
inflammation
Edema
o Rapid onset o Short duration, only last for a few days o Edema o Mainly neutrophil
Acute inflammation
any disease that
comes on slowly and does not
obvious symptoms at first
Insidious
WBC’s involved in chronic inflammation
lymphocytes
(agranulated) and macrophages
(phagocyte), plasma cells from
B-lymphocytes (antibodies)
fibrotic scarring,
which may lead to loss of
function
Fibrosis
restore the tissue to its normal (preinjury) state. The injurious stimuli are cleared, as well as the mediators and inflammatory cells. Injured cells are replaced, returning to normal function
Resolution
after removal of cellular debris, any necrotic parenchymal cells may be replaced by new parenchymal cells of the same type. It happens if the tissue does not return to the normal state
Regeneration
o Abscess formation
o Process of pus formation
Suppuration
o Acute inflammation did not heal (not a good response) o Disease examples are tuberculosis (bacteria), rheumatoid arthritis, chronic inflammation of the lungs
Chronic inflammation
Hallmark of chronic inflammation
macrophages,
lymphocytes, plasma cells
Inflammatory agents of chronic inflammation
silica dust, wood
splinters, metal
➢ Means “new growth”
➢ Neoplasm means “tumor/cancer”
➢ Uncontrollable proliferation or
multiplication of cells
Neoplasia
cells grow as a compact mass (encapsulated) and remain at their site of origin to localize the infection, can be usually felt
Benign
growth of cells is
uncontrolled cells can spread
into surrounding tissue and
spread to distant sites.
Malignant
(benign neoplasm of
glandular epithelium)
adenoma
(benign
neoplasm of the breast)
Fibroadenoma
(benign neoplasm
of smooth muscle)
Leiomyoma
Malignant
neoplasm of glandular tissue
Adenocarcinoma