CHAPTER 9 - Physical Development & Aging

Question 1

Between what ages does physical maturity peak?

Answer 1

25-30 years old

Question 2

Changes in the skin and tissue such as wrinkles include the loss of _____

Answer 2

Collagen

Question 3

What is the primary reason for the loss of bone over time?

Answer 3

A lack of exercise

Question 4

Define osteoporosis

Answer 4

An exaggeration of normal bone loss where you lose 25% more bone than a healthy adult

Question 5

Define osteoarthritis

Answer 5

The breakdown of joints and cartilage over time

Question 6

Explain the Metabolic Theory of Aging

Answer 6

Suggests that human beings have a fixed lifetime supply of metabolic energy and that a positive correlation exists between metabolic rate and aging

Question 7

Explain the neuroendocrine theory

Answer 7

Focuses on decreased function of the endocrine system and the neural centers that control it, the hypothalamus and the pituitary gland

Question 8

Explain the immune theory

Answer 8

Suggests that age related changes in the immune system reduce the ability to protect the body from infections and increase autoimmune disorders

Question 9

What is successful aging?

Answer 9

Healthy, optimal, or productive aging

Question 10

Explain inter individual variability

Answer 10

Differences in the expression of one or more behaviors between members of a population

Question 11

Explain intra individual variability

Answer 11

Defined as short term fluctuations in behavior that do not represent durable or systematic changes