Biology Questions and Answers
- What are the three main
cell types that form the
osseous tissue? What are their
functions?
The three main tissue are the osteocell types oblasts, thef the osseous
osteocytes and the osteoclasts.
Osteoblasts are known as bone-forming
cells since tthe proteinacehey are the cells that secreteous part of the bone
matrix (collagen, glycoproteins and
proteoglycans).intercellular space The bone matrix is thewhere the mineral
substances of the bones are deposited.
Osteocytes are differentiated maturosteoblasts formed after these cells aree (^)
completely surrmatrix. Osteocytes hounded by the boneave the function (^) of
supporting the tissue.
Osteoclastscells that remodelate th are the giant multinucleate osseous e
tissue. Tmonocytes anhey are originatd they contain maed from (^) ny
lisosomes. Ostethat digest the osseooblastsus matrix secrete enzymes creating
canals throughout the tissue.
- What is the bone matrix?
What are its main
components?
Bone matrix is the intercellular space of the osseous tissue.content that fills the (^)
The bone matrix is made of mineralsubstances (about 5%), mainly
phosphorus and calcium salts, and
organic sucollagen, glycoprotbstanceseins an (95%), mainlyd
proteoglycans.
- What are the Haversian
canals and the Volkmann’s
canals of the bones? Is the
osseous tissue vascularized?
The Haversian canals present in the osseocanals are longitudinalus tissue
within pass. The osseous tissue distributeswhich blood vessels and nerves
itself in a concentric manner around
these canals. Tcommunicationshe Volkmann between the Harv’s canals areesian
canals.
The osseous tissue vascularized in its interior.is highly - What are the functions of
the osseous tissue?
The main functions of the osseous tissue
are: to pbody and to delineate throvide structural rigie spatialdity to the
positioning of the other tissues and
organs; to serve as a site fsupport thor mineral storage body weight; toe,
mainly of calcium and phosphorus; to
form protective structures forgans like the brain, the spinal coror importantd,
the heart and the lungs; to work as a
lever and support foproviding movement; to cor the muscles,ntain the (^)
bone marroccurs. ow where hematopoiesis
- What are the flat bones
and the long bones?
The main bclassified as flat oones of the body may br long bones (theree (^)
are bones not classified into these
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