What tissues are osteocytes found in?
An osteocyte, an oblate shaped type of bone cell with dendritic processes, is the most commonly found cell in mature bone tissue, and can live as long as the organism itself. The adult human body has about 42 billion of them.
Are osteocytes found in muscle tissue?
Bone cells possess thin cytoplasmic branches, most myocytes are not like that (very short side branches are present in cardiac muscle cells). Individual myocytes undergo hypertrophy (increase in size), but osteocytes do not.
What tissue are osteoblasts found in?
Osteoblasts are found in large numbers in the periosteum, the thin connective tissue layer on the outside surface of bones, and in the endosteum. Normally, almost all of the bone matrix, in the air breathing vertebrates, is mineralized by the osteoblasts.
What connective tissue is formed by osteocytes?
Bones are considered organs because they contain various types of tissue, such as blood, connective tissue, nerves, and bone tissue. Osteocytes, the living cells of bone tissue, form the mineral matrix of bones.
What role do osteocytes have in bone tissue?
Osteocytes have multiple functions in bone tissue. They can sense fluid shear stress as a result of mechanical loading, translating the mechanical stress into the production of biochemical signaling molecules. These effective biomolecules further regulate bone resorption and bone formation.
What is the function of the osteocytes?
The osteocyte is capable of bone deposition and resorption. It also is involved in bone remodeling by transmitting signals to other osteocytes in response to even slight deformations of bone caused by muscular activity.
Where do osteoblasts and osteocytes come from?
Osteocytes originate from osteoblasts of which some become buried in the matrix and transformed from a polygonal cell to cells with many dendritic processes, which communicate with dendritic processes extending from the osteoblasts into the matrix.
What is the function of canaliculi in the context of osteocytes?
Finally, the function of the canalicular network for the osteocytes is to supply nutrients and remove waste by maintaining contact to blood vessels (Bonewald 2011).
How osteocytes get nutrients?
Osteocytes receive nutrients and eliminate wastes through blood vessels in the compact bone. Blood vessels in the periosteum and endosteum supply blood to blood vessels in the central canals. Nutrients leave the blood vessels of the central canals and diffuse to the osteocytes through the canaliculi.
Are osteocytes present in the bone matrix?
Although the structural design of cellular bone (i.e., bone containing osteocytes that are regularly spaced throughout the bone matrix) dates back to the first occurrence of bone as a tissue in evolution, and although osteocytes represent the most abundant cell type of bone, we know as yet little ab … Function of osteocytes in bone
What is the function of osteocytes?
Function of osteocytes in bone Although the structural design of cellular bone (i.e., bone containing osteocytes that are regularly spaced throughout the bone matrix) dates back to the first occurrence of bone as a tissue in evolution, and although osteocytes represent the most abundant cell type of bone, we know as yet little ab …
What are the four types of osteocyte cells?
Although osteocyte s constitute only a small fraction of total bone volume, they… …four characteristic cell types: osteoblasts, osteocyte s, osteoclasts, and undifferentiated bone mesenchymal stem cells.
Where are osteoclasts found in bone?
Osteoclasts are usually found on the surface of the tissue. Bone can be divided into two types: compact and spongy. Compact bone is found in the shaft (or diaphysis) of a long bone and the surface of the flat bones, while spongy bone is found in the end (or epiphysis) of a long bone.