Which term describes a fibrous connective tissue layer that can function as a separate envelope around tissue?

• A. Fascia
• B. Capsule
• C. Peritoneum
• D. Ligament

Answer: (A)

Fascia is the fibrous connective tissue layer that wraps around and separates tissues, forming distinct envelopes around structures. This sheet-like tissue can be isolated as a separate envelope around muscles, nerves, vessels, or organs, and it exists in superficial, deep, and visceral forms. In contrast, a capsule is the specific fibrous enclosure of an individual organ, the peritoneum is a serous membrane lining the abdominal cavity and covering organs, and a ligament is a band of tissue that connects bones or helps stabilize an organ. Because fascia regularly encloses and compartmentalizes tissues as an independent envelope, it best fits the description.