When a T Cell and an Antigen-Presenting Cell Interact, a Specialized

question 50

Short Answer

When a T cell and an antigen-presenting cell interact, a specialized contact called a(n) __________ synapse forms between them.

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Definitions:

Growth Factors

Natural substances capable of stimulating cellular growth, proliferation, healing, and cellular differentiation.

Melatonin

A hormone produced by the pineal gland that regulates sleep cycles.

Pineal Gland

Gland—either at the skin surface (fish, amphibians) or in the third ventricle of the brain (mammals)—that produces melatonin.

Human Growth Hormone

A peptide hormone secreted by the pituitary gland that stimulates growth, cell reproduction, and regeneration in humans.