Acute and Chronic Inflammation

Question 1

What is inflammation?

Answer 1

the reaction of vascularised living tissue to a local injury with the accumulation of fluid and cells

Question 2

How can it be repaired?

Answer 2

Regeneration
division of parenchyma
replaced by fibroblastic or glial scar tissue

Question 3

What are the 4 signs of inflammation?

Answer 3

redness
swelling
heat
pain

Question 4

Features of acute inflammation?

Answer 4

mediated by innate immune system
rapid onset
short duration
stereotyped response
rapid resolution

Question 5

What are the vascular changes of acute inflammation?

Answer 5

short vasoconstriction of arterioles
vasodilation and increased blood flow
slowing circulation
exudate fluid

Question 6

What two things accompany acute inflammations?

Answer 6

Exudate and Pus

Question 7

Features of chronic inflammation?

Answer 7

Long duration
presence of lymphocytes of macrophages
proliferation of blood vessels and connective tissues
not uniform

Question 8

What is a granuloma?

Answer 8

a small area of inflammation caused by infection
occurs when lymphocytes and macrophages go to the site of injury which can split into two things
a non-caseating epithelioid granuloma and a caseating granuloma
they can form scar tissue later