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BSC2085 - Test 2

Anatomy - Maser

Skeletal Cartilage large water content; no nerves; no blood vessels, perichondrium; cartilage cells
Resilient springs back to original shape
Perichondrium membrane surrounds cartilage
Chondrocytes cartilage cells
Extracellular matrix ground substance surrounds cells
Hyaline cartilage most abundant cartilage
Articular cartilage hyaline; at moveable bond ends
Costal cartilage hyaline; ribs to sternum
Laryngeal cartilage hyaline; forms larynx
Tracheal & Bronchial cartilage hyaline; respiratory system
Nasal cartilage hyaline; external nose
Elastic cartilage stretchy fibers for bending
Pinna external ear, elastic cartilage
Epiglottis covers opening to larynx; elastic cartilage
Fibrocartilage thickest for great strength, pressure & stretch
Menisci fibrocartilage pads; discs between spiral vertebrae
Appositional growth from outside; cells in surrounding perichondrium secrete new matrix
Interstitial growth from within; chondrocyte cells within cartilage divide & secrete new matrix
Skeleton Functions support, protection, movement, mineral storage and blood cell formation
Hematopoeisis blood cell formation by red marrow
Long bones long shaft with 2 ends; ex. bones of limbs
Short bones roughly cube shape; ex. wrist/ankle
Flat bones thin, flat & slightly curved; ex. sternum/ribs/skull bones
Irregular bones complex shapes; ex. vertebrae/hip
Compact bone lamellar bone (dense)
Spongy bone concellous bone; composed of trabeculae and open spaces filled with red & yellow bone marrow
Trabeculae flat bone pieces
Diaphysis long axis-short, medullary cavity
Medullary cavity central marrow cavity, contains yellow bone marrow
Epiphysis bone ends with spongy bone; joint surface with a layer of articular cartilage
Epiphyseal Line between diaphysis & each epiphysis
Periosteum protective covering of outer surface of diaphysis, secured to underlying bone by Sharpey's fibers
Sharpey's fibers secure underlying bone todiaphysis
Osteoblast cells bone-forming
Osteoclast cells bone-destroying
Endosteum membrane covers inner marrow cavity
Hematopoietic tissue red marrow - blood-forming tissue
Red Marrow cavity spongy area of long bones
Yellow Marrow fat in medulla cavity, can revert to red if anemic
Haversian system an osteon; parallel to length of bone
Lamella group of hollow tubes
Haversian canal thru central core of each osteon, contains nerves/blood vessels
Volkmann's canal enter at right angle; connets periosteum nerves & blood vessels to central canals and medullary cavity
Osteocytes mature bone cells, maintain bone matrix in small lucurae cavities
Canaliculi connets osteoclasts
Lacurae cavity contain osteoclasts
Spongy bone structure no osteons, trabeculae alighned to resist stress, osteocytes interconnect thru canaliculi
Created by: NknmJewel