Major submembranous site of osteoclast?

1. What is a major Submembranous site of osteoclasts?
2. Are osteoclasts found in the periosteum?
3. What are endosteum cells?
4. What are the two membranous sites of Osteoprogenitor cells?
5. What is the site of osteocytes?
6. What are the four major anatomical classifications of bones?
7. What is the diaphysis of the humerus?
8. What is the epiphyseal plate?
9. Where are osteoclasts found?
10. Where are osteoblasts and osteoclasts found?
11. Where is periosteum found?
12. Where is endosteum found?
13. Where is the endosteum found is it inside or outside the periosteum?
14. Where do you find periosteum and endosteum?

What is a major Submembranous site of osteoclasts?

major submembranous sites of osteoclasts. endosteum and periosteum.

Are osteoclasts found in the periosteum?

Periosteum and endosteum contain cells (osteoblasts, osteoclasts, and osteoprogenitor cells) required for bone development and remodeling of the bone.

What are endosteum cells?

These "bone lining" cells, or endosteal cells (EC), form a continuous membrane (endosteum) over the trabecular bone surfaces. In most cases, the composition and thickness of these cells do not vary unless the cells are in intimate contact with hematopoietic tissue.

What are the two membranous sites of Osteoprogenitor cells?

Osteoprogenitor cells are located on the endosteal and periosteal surface of the bone and inner surface of the Haversian canals (see Fig. 6.7).

What is the site of osteocytes?

Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae. Small channels (canaliculi) radiate from the lacunae to the osteonic (haversian) canal to provide passageways through the hard matrix.

What are the four major anatomical classifications of bones?

The four major anatomical classifications of bones are long, short, flat, and irregular.

What is the diaphysis of the humerus?

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.

What is the epiphyseal plate?

The epiphyseal growth plate is the main site of longitudinal growth of the long bones. At this site, cartilage is formed by the proliferation and hypertrophy of cells and synthesis of the typical extracellular matrix. The formed cartilage is then calcified, degraded, and replaced by osseous tissue.

Where are osteoclasts found?

OSTEOCLASTS are large cells that dissolve the bone. They come from the bone marrow and are related to white blood cells. They are formed from two or more cells that fuse together, so the osteoclasts usually have more than one nucleus. They are found on the surface of the bone mineral next to the dissolving bone.

Where are osteoblasts and osteoclasts found?

Osteoblasts, bone lining cells and osteoclasts are present on bone surfaces and are derived from local mesenchymal cells called progenitor cells. Osteocytes permeate the interior of the bone and are produced from the fusion of mononuclear blood-borne precursor cells.

Where is periosteum found?

The periosteum is a membranous tissue that covers the surfaces of your bones. The only areas it doesn't cover are those surrounded by cartilage and where tendons and ligaments attach to bone. The periosteum is made up of two distinct layers and is very important for both repairing and growing bones.

Where is endosteum found?

Endosteum covers the inside of bones, and surrounds the medullary cavity. The endosteum (plural endostea) is a thin vascular membrane of connective tissue that lines the inner surface of the bony tissue that forms the medullary cavity of long bones.

Where is the endosteum found is it inside or outside the periosteum?

The periosteum covers the outside of bones. The periosteum is a membrane that covers the outer surface of all bones, except at the articular surfaces (i.e. the parts within a joint space) of long bones. Endosteum lines the inner surface of the medullary cavity of all long bones.

Where do you find periosteum and endosteum?

Periosteum and Endosteum The periosteum forms the outer surface of bone, and the endosteum lines the medullary cavity. Flat bones, like those of the cranium, consist of a layer of diploë (spongy bone), lined on either side by a layer of compact bone (Figure 6.9).