Which of the Following Statements About the Completion of T-Cell

question 1

Multiple Choice

Which of the following statements about the completion of T-cell activation is false?

• A) IL-2 signaling is the ultimate trigger for clonal expansion
• B) The number of T cells that target a specific epitope rises to about 1 of every 3 lymphocytes
• C) It takes approximately one month to produce the target-specific T cell army
• D) T_H1, T_H2 and T_C cell initiate their effector activities

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Definitions:

Lymphatic Duct

A large vessel in the lymphatic system that drains lymph from the lymphatic vessels into the venous system.

Vena Cavae

The two major veins (superior vena cava and inferior vena cava) that carry deoxygenated blood from the body back to the heart.

Cisterna Chyli

A dilated sac at the lower end of the thoracic duct into which lymph from the intestinal trunk and two lumbar lymphatic trunks flows.

Thoracic Duct

The main lymphatic vessel that drains lymph from the lower and left side of the body into the circulatory system.