Which immunoglobulin binds mast cells in allergies

ATI RN

ATI RN Test Bank

Which immunoglobulin binds mast cells in allergies?

A. IgA B. IgD C. IgE D. IgG

Correct Answer: C

Rationale: IgE binds mast cells; IgA is secretions, IgD is on B cells, IgG is blood.

With regard to secondary lymphatic nodules: Their presence is indicative of an immune response.

A. TRUE B. FALSE C. D.

Correct Answer: A

Rationale: Secondary nodules develop in response to antigenic stimulation, indicating an active immune response.

Identify the centrally placed basophillically region.

A. White pulp B. Red pulp C. Germinal center D. Cortex

Correct Answer: A

Rationale: The centrally placed basophilic region in the spleen is the white pulp, rich in lymphocytes staining darkly.

All secondary lymphatic ergons except

A. lymph node B. tonsil C. thymus D. spleen

Correct Answer: C

Rationale: Thymus is a primary lymphatic organ; lymph nodes, tonsils, and spleen are secondary.

is irregular barrel shap that lined by fenestrated cells with non Contineons basement membrane

A. red pulp B. blood sinusoid C. splenic card D. white pulp

Correct Answer: B

Rationale: Blood sinusoids in the spleen are barrel-shaped, fenestrated, with discontinuous basement membranes.

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