ANATOMY

Detailed explanation-1: -The endosteum lines the inner bone surfaces and is composed of a single layer of connective tissue that lines the surface of the medullary cavity.

Detailed explanation-2: -The medullary cavity has a delicate membranous lining called the endosteum. The outer surface of bone, except in regions covered with articular cartilage, is covered with a fibrous membrane called the periosteum.

Detailed explanation-3: -The inner medullary cavity is lined with a membrane called the endosteum.