CNA Basic Human Anatomy and Age-Related Changes 2

Question 1

Which age-related change makes elderly patients more susceptible to dehydration?

Accepted Answer

Decreased thirst sensation

Answer

Older adults experience a diminished thirst sensation, making them less likely to drink adequate fluids even when dehydrated.

Question 2

The dermis is the skin layer that contains which of the following structures?

Accepted Answer

Sweat glands and hair follicles

Answer

The dermis contains sweat glands, hair follicles, blood vessels, and nerve endings beneath the epidermis.

Question 3

Which change in the urinary system is a normal part of aging?

Accepted Answer

Decreased ability to concentrate urine

Answer

Aging kidneys lose nephrons and have reduced ability to concentrate urine, leading to increased water loss.

Question 4

In the musculoskeletal system, sarcopenia refers to:

Accepted Answer

Age-related loss of muscle mass and strength

Answer

Sarcopenia is the progressive loss of skeletal muscle mass and strength that occurs with aging.

Question 5

Which part of the brain controls balance and coordination?

Accepted Answer

Cerebellum

Answer

The cerebellum coordinates voluntary muscle movements, maintains posture, and controls balance.

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