Question

unlike the other major membranes of the body, membranes lack an epithelial layer. cutaneous serous mucous synovial

Explanation:

• Cutaneous membranes (skin) have an epithelial layer (epidermis).
• Serous membranes (e.g., pleura) have an epithelial layer (mesothelium).
• Mucous membranes (e.g., in digestive tract) have an epithelial layer.
• Synovial membranes line joint cavities and lack an epithelial layer. They are composed of connective tissue cells that secrete synovial fluid.

Answer:

synovial