When degranulation of mast cells occurs and chemical mediators are released,which of the following would occur in the lungs?
I.Increased vascular permeability
II.Increased mucus production
III.Smooth muscle relaxation
IV.Vasodilation with edema

Question

Quizplus · Accepted Answer

When mast cell degranulation occurs in the lungs, it leads to the release of histamine and other chemical mediators that result in increased vascular permeability and vasodilation with edema. This can cause airway swelling and fluid build-up in the lungs. Additionally, the release of these mediators can also stimulate increased mucus production which can contribute to airway obstruction. However, the effects of degranulation on smooth muscle relaxation are variable and may depend on the specific chemical mediators released.

When Degranulation of Mast Cells Occurs and Chemical Mediators Are