Osteoporosis is a dysfunction of what body system?

a. Urinary
b. Skeletal
c. Integumentary
d. Respiratory

b. Skeletal

The correct answer is b. Skeletal. Osteoporosis is a condition characterized by a decrease in bone density and strength, leading to an increased risk of fractures. It affects the skeletal system, specifically the bones.

To determine the answer to this question, we need to understand what osteoporosis is and which body system it affects.

Osteoporosis is a medical condition characterized by the loss of bone mass and density, leading to weak and brittle bones. It increases the risk of bone fractures, even with minor falls or injuries.

Now let's go through the options provided:

a. Urinary: The urinary system is responsible for the production, storage, and elimination of urine. Osteoporosis does not directly affect the urinary system.

b. Skeletal: The skeletal system, also known as the musculoskeletal system, includes bones, joints, ligaments, and other connective tissues. Osteoporosis primarily affects the skeletal system by causing the bones to become weak and porous.

c. Integumentary: The integumentary system includes the skin, hair, nails, and sweat glands. Osteoporosis does not directly affect the integumentary system.

d. Respiratory: The respiratory system includes the organs involved in breathing, such as the lungs, bronchi, and trachea. Osteoporosis does not directly affect the respiratory system.

Based on this analysis, the correct answer is b. Skeletal. Osteoporosis is a dysfunction of the skeletal system.