How Is the Development of Autoimmunity Normally Prevented

question 52

Multiple Choice

How is the development of autoimmunity normally prevented?

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

---

Definitions:

Enzyme

A biological molecule that acts as a catalyst, speeding up chemical reactions in the body without being consumed or altered in the process.

Body Fluids

Liquids originating from inside the bodies of living organisms, which include blood, saliva, semen, and sweat, among others.

Central Nervous System

The primary information processing center of the body, consisting of the brain and spinal cord, responsible for processing and sending out signals.

Parasympathetic Division

Part of the ANS that restores the body to normal functioning after arousal and is responsible for the day-to-day functioning of the organs and glands; “eat-drink-and-rest system.”