OVERVIEW OF THE IMMUNE SYSTEM
IMMUNITY INNATE AND ADAPTIVE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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injecting antibodies
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injecting perforin
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secreting lymphokines which attract neutrophils, eosinophils, macrophages
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secretion of monokines that signal the lymphokines to destroy the pathogen
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Detailed explanation-1: -CD8 cytotoxic T cells are serial killers that slay one infected or cancerous cell after another. During each fatal encounter, an intercellular junction called the immunological synapse forms between killer and victim, according to researchers from Oxford University (Oxford, UK).
Detailed explanation-2: -Cytotoxic T cells kill their targets by programming them to undergo apoptosis (Fig. 8.35). When cytotoxic T cells are mixed with target cells and rapidly brought into contact by centrifugation, they can program antigen-specific target cells to die within 5 minutes, although death may take hours to become fully evident.
Detailed explanation-3: -Cytotoxic T-cells are a type of immune cell. They destroy cells infected with viruses. Another name for cytotoxic T-cells is killer T-cells.
Detailed explanation-4: -Cytotoxic T cells (CTLs) are a key component of the adaptive immune system and are key for destruction of viral infected cells (Nutt and Huntington, 2019). These T cells recognise antigen, via their T cell receptor, presented in MHC class I molecules.