How Do CD8 Regulatory T Cells Identify CD4 Cells That

question 8

Multiple Choice

How do CD8 regulatory T cells identify CD4 cells that should be killed?

• A) FasL is cleaved from CD4 T cell.
• B) Qa-1 is present on CD4 T cell surface.
• C) The high affinity IL-2 receptor is stimulated.
• D) Antigen expression is required on MHC class II molecules.

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Definitions:

Excitatory Neurotransmitter

A chemical substance that promotes the generation of an electrical signal in the receiving neuron.

Psychoneuroimmunology

An interdisciplinary field that studies the interactions between the nervous system and the immune system, and how psychological factors can affect physical health.

Psychological Factors

Pertains to the mental influences that affect an individual's behavior, emotions, and thoughts, including attitudes, beliefs, and motivation.

Immune System

A complex network of cells, tissues, and organs that work together to defend the body against attacks by foreign invaders such as bacteria, viruses, and parasites.