periosteum :)
Periosteum is a membrane that lines the outer surface of all bones,[1] except at the joints of long bones.
Cell Wall
The tough, tight-fitting membrane covering the surface of bone is the periosteum. It consists of dense irregular connective tissue and serves to protect the bone, provide a site for muscle attachment, and aid in bone repair and growth. The periosteum also contains blood vessels and nerves that supply the bone.
I think it is the cell wall or the cell membrane
The periostuem is a tough tight fitting membrane that covers the surface of bones.
The tough outer covering that lies just outside the cell membrane in a plant cell is called the cell wall. In plant cells, it is usually made up of cellulose, hemicellulose and pectin.
The membrane covering a living bone's surface is called the periosteum. It is a dense, fibrous layer that contains blood vessels, nerves, and cells important for bone maintenance and repair. The periosteum helps protect the bone and plays a role in bone growth and healing.
The outermost covering of the brain is called the dura mater. It is a tough membrane composed of dense irregular connective tissue that helps protect the brain and spinal cord. Adhering to the inside surface of the skull, the dura mater also forms partitions that divide the brain into compartments.
No. The dura mater is not a layer of skin. The word means "tough mother". It is a very tough membrane, one of three, covering the brain underneath the skull.
The smooth muscle membrane tightly adherent to the kidney surface is the renal capsule. It is a tough fibrous layer that surrounds and protects the kidney.
A porpoise has tough leather like skin body covering, that protects them from some predators.
The dura is the tough, fibrous outermost membrane covering the brain and the spinal cord.