Immunity

Question 1

IgM

Answer 1

The primary or first release of antibodies. This also receptor sites on B lymphocytes

Question 2

IgG

Answer 2

The secondary and more powerful release of Antibodies

Question 3

IgE

Answer 3

Plays a role in Allergic reactions

Question 4

IgA

Answer 4

Protection within body cavities

Question 5

IgD

Answer 5

Receptor site on B lymphocytes

Question 6

Functions and location of H1 receptors

Answer 6

Histamine 1 receptors:

1. Vasodilation
2. Bronchoconstriction
3. Increased capillary permeability

These receptors are found in the skin, face, and upper abdomen

Question 7

H2 receptors

Answer 7

These receptors are found in the stomach and when stimulated they increase gastric secretions

Question 8

Describe in detail how histamine is released in an allergic reaction

Answer 8

When an antigen finds its way into the body, there is a release of IgE antibodies that bind to Mast cells. When this antigen is encountered by this “primed” Mast cell there is a release of Histamine.

Question 9

What cells release Histamine?

Answer 9

Mast cells, Basophils

Question 10

H1 antagonists

Answer 10

Blocks the receptors for Histamine1, but does not inhibit the release of histamine from the Mast cells.