Changes in the Immune System That Accompany Aging Include

question 99

Multiple Choice

Changes in the immune system that accompany aging include

• A) T cells becoming less responsive to antigens.
• B) more cytotoxic T cells responding to infections.
• C) increased numbers of T helper cells.
• D) higher levels of antibodies after initial exposure to antigens.
• E) enlargement of the thymus and increased levels of circulating thymic hormones.

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Definitions:

Motivation

The process that initiates, guides, and maintains goal-oriented behaviors; it is what causes you to act, whether it is getting a glass of water to reduce thirst or reading a book to gain knowledge.

Esteem Needs

The fourth level in Maslow's hierarchy of needs, which includes feelings of accomplishment and recognition from others.

Safety Needs

A concept in Maslow's hierarchy of needs referring to an individual's need for security and protection from physical and emotional harm.

Expectancy Theory

A process theory that states that motivation is determined by the outcomes that people expect to occur as a result of their actions on the job.