CD4 count refers to –
Correct Answer: T helper cells
Description: Ans. is 'a' i.e., T helper cells o Helper T-cells - CD4 positive.o Cytotoxic T-cells and suppressor T-cells - CD 8 positive,o Based on function CD4 helper T cells are divided into-1. Effector CP4 helper Tcells# Functions are :-A. By TH1 cellsActivate macrophagesDelayed hypersensitivityCell mediated immunityKilling of intracellular microbes.e.g. tuberculosis and leprosyDestruction of target cells by-Activate CDS T cells to become cytotoxic cells.Activate NK cellsB By TH2 celtsi) Activate B cells to develop into antibody producing plasma cells - facilitate synthesis of antibodies.2. Memory CD4 helper T cells# Retain the antigenic affinity of the originally activated T cells and are used to act as later effector cells during a second immune response.
Category:
Pathology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now