PATHOLOGY

PATHOLOGY MCQ

INFLAMMATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
After a mini-exam, you and a couple of friends spend the weekend on the beach in St. Martin. At the end of the day, one of your friends complains of sunburn. His back is very red, warm and painful to touch. What is the most likely cause of this erythema?
A
ischemia
B
Edema of the dermis
C
Vasodilation of blood vessel in dermis
D
Bradykinin
Explanation: 

Detailed explanation-1: -Vasodilation is 1 of the earliest manifestations of acute inflammation. It refers to the widening of the blood vessels. Then leucocyte adheres to the vascular endothelium.

Detailed explanation-2: -Suppurative inflammation involves the production of large amounts of pus. The generation of chemotaxins by bacteria results in a dense accumulation of neutrophils which undergo autolysis by their own lysosomal enzymes. Release of proteases and activated oxygen metabolites by neutrophils results in tissue destruction.

Detailed explanation-3: -The most common reasons for chronic inflammation include: Autoimmune disorders, such as lupus, where your body attacks healthy tissue. Exposure to toxins, like pollution or industrial chemicals. Untreated acute inflammation, such as from an infection or injury.

Detailed explanation-4: -Vascular changes When tissue is first injured, the small blood vessels in the damaged area constrict momentarily, a process called vasoconstriction.

There is 1 question to complete.