II LATEST 2025-2026
WITH QUESTIONS AND
CORRECT VERIFIED
ANSWERS GRADED A+
GUARANTEED 100%
PASS
Fibrocartilage - ANSWERS-Thick collagen fibers- great tensile strength. Ex.Menisci of
knee, Intervertebral Discs.
Appositional Growth - ANSWERS-Bone cells secrete matrix AGAINST EXTERNAL
FACE of existing cartilage.
Interstitial Growth - ANSWERS-Chondrocytes divide and secrete new matrix, expanding
cartilage from WITHIN.
Osteogenic Cells - ANSWERS-Mitotically active stem cells in periosteum & endosteum.
DIFFERENTIATE INTO OSTEOBLASTS/BONE LINING CELLS WHEN STIMULATED!
Osteoblasts - ANSWERS-Bone forming cells, secrete osteoid. Actively mitotic.
, Osteoid - ANSWERS-Unmineralized bone matrix including collagen and calcium-
binding proteins. A
Collagen - ANSWERS-90% of bone protein.
Osteocytes - ANSWERS-Mature bone cells in Lacunae. Monitor and maintain bone
matrix; act as stress/strain sensors.
Bone Lining Cells - ANSWERS-Flat cells of bone surface believed to help maintain
matrix.
Periosteal Cells - ANSWERS-Lie on external bone surface
Endosteal Cells - ANSWERS-Line internal bone surfaces.
Osteoclasts - ANSWERS-These bone cells are derived from hematopoietic cells and
become macrophages. They are giant and multi-nucleated. For bone reabsorption, lie in
absorption bay.
Absorption Bay - ANSWERS-Area of closed-off bone matrix; ruffled borders that
increase surface area. Site of osteoclasts.
Osteon (Havarsian System) - ANSWERS-The structural unit of compound bone.
Elongated cylinder parallell to compact bone; hollow tubes of bone matrix.
Lamellae - ANSWERS-Collagen fibers in adjacent rings that withstand stress and resist
twisting.
Central(Havarsian) Canal - ANSWERS-Run through cores of osteons, site of nerve
fibers and blood vessels.
Volkmann's (perforating) Canals - ANSWERS-Lined with endosteum; arranged at right
angles. Connect blood vessels & nerve fibers of periosteum, medullary cavity and
central canal.
Lacunae - ANSWERS-Small cavities containing Osteocytes.
Canaliculi - ANSWERS-Hair-like structures that connect Lacunae to each other and to
the central canal.
Gap Junctions - ANSWERS-Method of communication between Osteoblasts and
osteocytes. Also allow for nutrients and wastes to be relayed from one Osteoblast to
another.
Trabeculae - ANSWERS-Align along lines of stress to help reduce it. Contain irregularly
arranged lamellae and osteocytes interconnected by caniliculli.