Flashcards: Histology lecture 9 study

Vascularized, Innervated, Produces hydroxyapatite crystals [Ca10(PO4)6(OH)2] within its ECMCollagen type 1

Osteoblast, Osteocyte (fully differentiated osteoblast) and Osteoclast

Initially forms osteoid forms (pre bone)which continue to mineralize to become a bone matrix. cells within in blue are the osteocytes. Os

Selected osteoblast that ‘remains behind ’Coated by thin layer of osteoid Connected through canaliculi

the are Osteoblast that (Stays behind) and become bone. coded by thin layer of osteoid to help them exchanged through membrane.

clear White part has not become bone, secreting to become bone is between the blue and pink part. The bone matrix is blue part, cells within blue area is osteocytes.

Connected through osteocytes through other cells are canaliculi (small tunnels in the bone that are run between cells and nerves that keep cells alive.)

Bone resorption (osteoclasia) and remodeling. Originate from bone marrow, coalescing monocytes Lysosomally rich.

The Ruffled border creates a resorption bay (Howslip’slacuna). Vesicular zone. Where lysosome secret out into the space area of bone.

keep all the enzymes in the area that osteoclast wants them and keeps lysosomes from entering in areas they're not supposed to be in.

Blue: cartilage red: bone