Which tissues have a higher water content with a lower absorption rate?

• A. Skin & adipose tissue
• B. Muscle and bone
• C. Tendon and ligament
• D. Nerves and joints

Answer: (A)

Water content in tissue is a key factor in how energy from physical agent modalities interacts with it. Tissues with more water tend to interact more with energy, but absorption rate isn’t determined by water content alone—tissue structure, thickness, and how heat dissipates through the tissue also matter. Skin contains appreciable moisture in its surface layers, giving it relatively higher water content among superficial tissues, while adipose tissue, though lower in water than muscle, acts as an insulating matrix that slows how quickly energy penetrates deeper. This combination can produce a scenario where the tissue group has a higher water content relative to some other tissues, yet a slower, more limited absorption rate compared with deeper, more water-rich, and more vascular tissues such as muscle or bone. Therefore, skin and adipose tissue together best fit the described pattern.