PracticeQuiz content is free on an ad-supported model.

Unfortunately, we can't support ad blocker usage because of the impact on our servers. If you'd like to continue, please disable your ad blocker and reload page.

Reload page

ADA NBDHE Dental Hygienist

Category - Scientific Basis for Dental Hygiene Practice

Start a Study Session Sign up for Question of the Day

What are histamine and serotonin?

Vasoactive amines
Plasma proteins
Chemical mediators
Arachidonic acid

Explanation

Answer: A - Histamine and serotonin are vasoactive amines. Histamine is found in mast cells, blood basophils, and platelets. It causes dilation of the arterioles, increases the permeability of venules, and constricts large arteries. Serotonin is present in platelets and enterochromaffin cells. They cause increased permeability during immunologic reactions.

Was this helpful? Upvote!

Start a Study Session Sign up for Question of the Day

ADA NBDHE Dental Hygienist

Top questions

Related questions

Most popular on PracticeQuiz

Ad-Blocker not supported

ADA NBDHE Dental Hygienist

Top questions

Related questions

Most popular on PracticeQuiz