Which bone shape is described as Platelike structures with broad surfaces?

Which bone shape is described as Platelike structures with broad surfaces?

A kneecap (patella) is an example of a sesamoid bone. are platelike structures with broad surfaces, such as the ribs, scapulae, and some bones of the skull.

What is a bone shaft?

The diaphysis is the main or midsection (shaft) of a long bone. It is made up of cortical bone and usually contains bone marrow and adipose tissue (fat). It is a middle tubular part composed of compact bone which surrounds a central marrow cavity which contains red or yellow marrow.

Why is there spongy bone in the epiphysis?

Spongy bone provides balance to the dense and heavy compact bone by making bones lighter so that muscles can move them more easily. In addition, the spaces in some spongy bones contain red bone marrow, protected by the trabeculae, where hematopoiesis occurs.

What is the hard dense outer layer of bone?

periosteum, dense fibrous membrane covering the surfaces of bones, consisting of an outer fibrous layer and an inner cellular layer (cambium). The outer layer is composed mostly of collagen and contains nerve fibres that cause pain when the tissue is damaged.

What bones have a sandwich structure?

In cross-section, the end of a long bone (see Fig 2) such as the femur has a dense cortical shell with a porous, cancellous interior. Flat bones such as the calvaria have a sandwich structure: dense cortical layers on the outer surfaces and a thin, reinforcing cancellous structure within.

What is the bone structure?

The bones in the skeleton are not all solid. The outside cortical bone is solid bone with only a few small canals. The insides of the bone contain trabecular bone which is like scaffolding or a honey-comb. The spaces between the bone are filled with fluid bone marrow cells, which make the blood, and some fat cells.

What is the membrane that is on the surface of bones?

the periosteum
The tough, thin outer membrane covering the bones is called the periosteum.

What structures make up spongy bone?

Spongy bone consists of plates (trabeculae) and bars of bone adjacent to small, irregular cavities that contain red bone marrow. The canaliculi connect to the adjacent cavities, instead of a central haversian canal, to receive their blood supply.

What is the outer covering of bone called?

periosteum