Osseous Tissue Flashcards
Long bones
A bone longer than wide
Epiphysis
*ends of a bone
*mostly spongy bone
*red bone marrow
*trabeculae
*hemopoiesis: blood production
*contains articular cartilage
Diaphysis
*shaft of a long bone
*mostly compact bone
*yellow bone marrow
*adipose connective tissue
*store energy
*medullary/marrow cavity
*osteons
*peristeum (surrounds diaphysis)
Hemopoiesis
*blood production
*articular cartilage=hyaline cartilage
*metaphysis= epiphyseal
Articulation
Where two bones meet
Epiphyseal line
Done growing
Epiphyseal plate
Still growing
Metaphysis
where diaphysis and epiphysis meet
Trabeculae
Branch looking found in the spongy bone
*enables cancellous bone to withstand stress from multiple directions
Compact bone
Withstand stress from limited directions (parallel)
Perforating canal
Blood vessels that run perpendicular to the osteons (and nerves)
Canaliculi
*connect lacunae to lacuna and osteocyte to osteocyte together
*for communication
*osteocyte lives in lacuna
Diaphysis contains
*yellow bone marrow
*compact bone
*periosteum
*perforating (sharpey’s) fibers
*nutrient arteries
*endosteum
Periosteum
Like skin; outer layer of diaphysis
Perforating (sharpey’s) fibers
Binds peristeum to bone
Osteon
The chief structural unit of compact bone
Central canal
Blood vessels and nerves
Concentric Lamellae
Would be around perimeter of the bone; they resist twisting of the bone; ring of osteons
Interstitual Lamellae
Remains of old osteons
Wolff’s law of bone
Architecture of a bone is determined by the stresses placed on it
