Connective Tissue Specialized Flashcards
It provides SOLID SUPPORT for the body, PROTECTS VITAL ORGAN, and SERVES as a reservoir of CALCIUM, PHOSPHATE, and other IONS.
Bone Tissue
Bone tissue is composed of?
- ECM (Bone Matrix)
- Osteocytes
- Osteoblasts
- Osteoclasts
This is found in the CAVITIES OF LACUNAE between BONE MATRIX, with cytoplasmic processes in CANALICULI.
Osteocytes
It is known as the GROWING CELLS which SYNTHESIZE and SECRETE the organic components of matrix.
Osteoblasts
This is a GIANT, MULTINUCLEATED CELLS involved in removing calcified bone matrix and remodeling bone tissue.
Osteoclasts
It is a LAYER of connective tissue containing osteogenic cells that OUTER the SURFACE OF BONE and has perforating fibers (Sharpey).
Periosteum
It is a LAYER of connective tissue containing osteoprogenitor cells, osteoblasts, and bone lining cells, but within a sparse, delicate matrix of collagen fibers that INNER SURFACE OF BONE.
Endosteum
It is a TYPE OF BONE that represents 80% of the total bone mass and is made up of SOLID BONE MATRIX.
Compact Bone
It is a TYPE OF BONE that constitutes about 20% of total bone mass and SMALL BONY TRABECULAE or SPICULES.
Cancellous Bone (Spongy Bone)
The BULBOUS END OF LONG BONE is composed of cancellous bone-covered
by a thin layer of compact cortical bone.
Epiphysis
The CYLINDRICAL PART is almost totally dense compact bone, with a thin region of cancellous bone on the inner surface around the central marrow cavity.
Diaphysis
It refers to the complex of CONCENTRIC LAMELLAE, typically 100-250 μm in diameter, surrounding a central canal that contains small blood vessels, nerves, and endosteum.
Osteon (Haversian System)
Most bone in adults, compact or cancellous, has multiple layers, and is known as the MATURE BONE is organized as?
Lamellar Bone
BONE DEVELOPMENT also called?
Osteogenesis
It is a NONLAMELLAR and characterized by the random disposition of type I collagen fibers known as IMMATURE BONE.
Woven Bone
OSSIFICATION which OSTEOBLASTS DIFFERENTIATE directly from mesenchyme and begin secreting osteoid.
Intramembranous Ossification
OSSIFICATION which PRE-EXISTING MATRIX of hyaline cartilage is eroded and invaded BY OSTEOBLASTS, which then begin osteoid production.
Endochondral Ossification
It is a ZONE that is composed of typical HYALINE CARTILAGE.
Zone of Reverse
It is a ZONE that cartilage cells DIVIDE REPEATEDLY, ENLARGE, and SECRETE MORE type II collagen.
Zone of Proliferation
It is a ZONE containing SWOLLEN, terminally differentiated chondrocytes.
Zone of Hypertrophy
It is a ZONE that chondrocytes about
to UNDERGO APOPTOSIS release matrix vesicles.
Zone of Calcified Cartilage
It is a ZONE that bone tissue FIRST APPEAR.
Zone of Ossification
It RAISES LOW blood calcium levels
Parathyroid Hormone
It REDUCES elevated blood calcium levels
Calcitonin
