How Is the Development of Autoimmunity Normally Prevented

question 67

Multiple Choice

How is the development of autoimmunity normally prevented?

• A) T lymphocytes that respond to autoantigens in the thymus undergo clonal deletion.
• B) Clonal deletion of T cells and regulatory T cell suppression prevent autoreactive T cell activation.
• C) Regulatory T cells suppress autoimmune responses.
• D) T lymphocytes require a specific set of cytokine signals to become activated.
• E) Clonal deletion of T cells, lack of necessary cytokine signals, and regulatory T cell suppression prevent activation of autoreactive T cells.

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Definitions:

Rods and Cones

Photoreceptor cells in the retina of the eye responsible for vision; rods detect light intensity and are crucial for night vision, while cones are responsible for color vision and visual acuity.

Feature Detectors

Neurons in the brain that identify specific features of a stimulus, such as edges, lines, or movements, enabling the recognition of patterns and objects.

Visual Processing

The interpretation of visual information by the brain from input received through the eyes, involved in recognizing, analyzing, and making sense of visual stimuli.

Accommodation

In cognitive psychology, it refers to adapting one's mental structures to incorporate new information, distinct from simple assimilation.