PATHOLOGY

PATHOLOGY MCQ

IMMUNE RESPONSE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is an immediate effect of histamine release?
A
dilation of local blood vessels
B
blocking of a response to ragweed pollen
C
conversion of histamine to histidine
D
increase in blood pressure
Explanation: 

Detailed explanation-1: -Histamine Induces Vascular Hyperpermeability by Increasing Blood Flow and Endothelial Barrier Disruption In Vivo.

Detailed explanation-2: -histamine. Which of the following is an immediate effect of histamine release? remove contaminating microorganisms and initiate repair of damaged tissues.

Detailed explanation-3: -Histamine works with nerves to produce itching. In food allergies it can cause vomiting and diarrhea. And it constricts muscles in the lungs, making it harder to breathe. Most worrisome is when histamine causes anaphylaxis, a severe reaction that is potentially fatal.

Detailed explanation-4: -Injured tissue mast cells release histamine, causing the surrounding blood vessels to dilate and increase in permeability.

There is 1 question to complete.