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BSC2085 - Test 2
Anatomy - Maser
| Name | Description |
|---|---|
| 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
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