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  2. Osteon - Wikipedia

    en.wikipedia.org/wiki/Osteon

    In osteology, the osteon or haversian system (/ h ə ˈ v ɜːr. ʒ ən /; named for Clopton Havers) is the fundamental functional unit of much compact bone. Osteons are roughly cylindrical structures that are typically between 0.25 mm and 0.35 mm in diameter . [ 1 ]

  3. Endochondral ossification - Wikipedia

    en.wikipedia.org/wiki/Endochondral_ossification

    Endochondral ossification is responsible for development of most bones including long and short bones, [4] the bones of the axial (ribs and vertebrae) and the appendicular skeleton (e.g. upper and lower limbs), [5] the bones of the skull base (including the ethmoid and sphenoid bones) [6] and the medial end of the clavicle. [7]

  4. Ossification - Wikipedia

    en.wikipedia.org/wiki/Ossification

    Bone is broken down by osteoclasts, and rebuilt by osteoblasts, both of which communicate through cytokine (TGF-β, IGF) signalling.Ossification (also called osteogenesis or bone mineralization) in bone remodeling is the process of laying down new bone material by cells named osteoblasts.

  5. Long bone - Wikipedia

    en.wikipedia.org/wiki/Long_bone

    They grow primarily by elongation of the diaphysis, with an epiphysis at each end of the growing bone. The ends of epiphyses are covered with hyaline cartilage ("articular cartilage"). The longitudinal growth of long bones is a result of endochondral ossification at the epiphyseal plate.

  6. Bone canaliculus - Wikipedia

    en.wikipedia.org/wiki/Bone_canaliculus

    Materials picked up by osteocytes adjacent to blood vessels are distributed throughout the bone matrix via the canaliculi. Diameter of canaliculi in human bone is approximately 200 to 900 nm. [ 1 ] In bovine tibia diameter of canaliculi was found to vary from 155 to 844 nm (average 426 nm). [ 2 ]

  7. Osteology - Wikipedia

    en.wikipedia.org/wiki/Osteology

    A human skeleton (endoskeleton). Osteology (from Greek ὀστέον (ostéon) 'bones' and λόγος (logos) 'study') is the scientific study of bones, practised by osteologists.

  8. What are death cap mushrooms and why are they so deadly ... - AOL

    www.aol.com/lifestyle/death-cap-mushrooms-why...

    Once you eat a death cap mushroom, the toxins are absorbed by the stomach and circulated in the kidneys and liver, Pringle explains. "The liver shuts down because it can't make proteins," she says ...

  9. Bone - Wikipedia

    en.wikipedia.org/wiki/Bone

    They are located on the surface of osteon seams and make a protein mixture known as osteoid, which mineralizes to become bone. [23] The osteoid seam is a narrow region of a newly formed organic matrix, not yet mineralized, located on the surface of a bone. Osteoid is primarily composed of Type I collagen.