Dental Admissions Test (DAT) Practice Test

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Prepare for the Dental Admissions Test (DAT) efficiently. Utilize flashcards and multiple-choice questions with helpful explanations. Ace your exam!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Where is the immunoglobulin IgA found in the body?

Blood only
Lymphatic system
Intercellular spaces
Bodily secretions like tears and saliva

The correct answer is: Bodily secretions like tears and saliva

IgA is primarily found in bodily secretions like tears, saliva, and mucous secretions in the respiratory, gastrointestinal, and genitourinary tracts. This specific immunoglobulin plays a crucial role in mucosal immunity by protecting these surfaces from pathogens. While IgA can be present in blood and the lymphatic system to a lesser extent, its main function lies in bodily secretions, making option D the correct answer.