Which Best Explains the Formation of a Goiter from Iodine

question 15

Multiple Choice

Which best explains the formation of a goiter from iodine deficiency?

• A) Lack of suppression from TRH causes more thyroid hormone to be released. This continual release stimulates the thyroid and eventually causes it to grow bigger.
• B) Lack of iodine causes an immune response in the thyroid causing it to swell.
• C) Lack of negative feedback from thyroid hormone causes more TRH to be released. This continual release stimulates the thyroid and eventually causes it to grow bigger.
• D) Positive feedback from excess thyroid hormone causes more TRH to be released. This continual release stimulates the thyroid and eventually causes it to grow bigger.

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Definitions:

Discrepancy

A divergence or difference between two or more things or facts, often leading to a need for adjustment or resolution.

Self-Efficacy

An individual's belief in their capability to execute behaviors necessary to produce specific performance attainments.

Self-Regulation

A process whereby people set goals, creating a discrepancy between the desired state and the current state.

Social Cognitive Theory

A theory of learning and social behavior which proposes that new behaviors can be acquired by observing and imitating others.