Question

which of these tissue changes is not commonly found in an aging body?
loss of bone mass
more fragile connective tissue
thicker epidermis
reduced mitotic rate

Explanation:

• Loss of bone mass: Common in aging as bone density decreases with age.
• More fragile connective tissue: Aging leads to changes in connective tissue, making it less resilient.
• Thicker epidermis: In reality, the epidermis thins with age (due to reduced cell turnover), so a thicker epidermis is not a common age - related tissue change.
• Reduced mitotic rate: As cells age, their ability to divide (mitotic rate) typically decreases.

Answer:

C. thicker epidermis