32 Inflammation (Acute Inflammation)

Question 1

What are the two types of inflammatory mediators?

Answer 1

vasoactive (act on blood vessels)

chemotactic (act on cells)

Question 2

what are the two stages of acute inflammation?

Answer 2

stage 1: vascular

stage 2: chemotactic

Question 3

what are the 4 cell types involved in acute inflammation?

Answer 3

neutrophils (phagocytic) - ingest and kill microbes. type of white blood cell, produced in bone marrow

mast cells (secrete inflammatory mediators) - located in loose CT of skin

basophils (secrete inflammatory mediators) - located in blood

platelets (aggregate and release inflammatory substances)

Question 4

what happens in the vascular phase of acute inflammation?

Answer 4

vasodilation:
dilation of blood vessels
increases blood flow to tissues

increased vascular permeability:
allows fluid to exit blood vessels into tissues easily, delivery of WBCs, nutrients and plasma proteins

Question 5

which type of immune system is acute inflammation a part of?

Answer 5

innate immune system