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AnP Ch 6 Part A

Chapter 6 Part A

TermDefinition
Skeletal Cartilage Highly resilient tissue that consist of water
Perichondrium Layer of dense connective tissue surrounding cartilage like a girdle.
Chondrocytes Cells encased in small cavities with in jelly like extracellular matrix.
Hyaline Cartilage Support, flexibility and resilience. Abundant. Collagen fibers. Joints, ribs, respiratory and noes tip.
Elastic Cartilage Elastic fibers like ears
Fibrocartilage Thick collagen fibers. Tensile strength. Between bones of spine and knee.
Appositional Growth Opposite side. New matrix laid down on surface of cartilage.
Interstital grownth 2 ends. new matrix made with in cartilage.
Support body and soft organs
Protection brain, spinal cord and organs
Movement Levers for muscle action
Mineral and Growth Calcium and Phosphorus
Blood Cell Formation Production of blood cells
Hematopoiesis Red marrow cavities of bones
Triglyceride Fat used for energy source
Hormone Production Osteocalcin secreted by bones helps with insulin.
Axial Center of body. Skull, Vertabral column rib cage.
Appendicular Arms and legs.
Long Bones Longer than wide. Limb bones.
Short bones Cube shaped Wrist and ankle. not attached to another bone
Sesamoid Form with in tendons.
Flat bones Thin, flat, curved. Sternum, scapilae, ribs and skull
Irregular Bones Complicated shapes. Vertebrae and hip bones
Level of Bone structure Gross, Microscopic and Chemical.
Compact Bone Hard and Condensed
Spongy Bone Honeycomb, holes called trabeculae
Trabeculae spaces are filled with red or yellow bone marrow. Strength to bone.
Periosteum covers outside of compact bone
Endosteum Covers inside portion of compact bone.
Diaphysis Long bone shaft, tubular
Epiphyses Long bone ends, spongy bone.
Epiphyseal Line between Diaphysis and Epiphysis
Epiphyseal Plate Bone growth occurs.
Periosteum White, double layer membrane. Outercoting
Osteogenic Layer Generates bone. Stem cells rise
Endosteum Inner most layer. Covers spongy bone, Lines canals.
Red marrow Hematopoietic tissue. found in trabecular cavities and sternum.
Medullary Cavities In newborns, spongy bone contains red marrow.
Bone markings Projection, Depression and Opening.
Projection Outward bulge of bone
Depression Bowl or groove like cut out.
Opening Hole or canal in bone for blood vessels.
Osteogenic Cells Produce Stem Cells
Osteoblast bone forming, Secrete bone matrix.
Osteocytes Mature bone cells. No longer divide.
Osteoclasts Destroy bone, remodeling can occur
Bone lining Cells Flat, on internal and external surfaces,
Compact Bone Lamellar bone, Osteon, Canals, Interstitial.
Osteon Structure of compact bone. Parallel to long axis. Rings of bone matrix.
Central (Haversian) Canal Through core of osteon. Blood vessels and nerve fibers.
Perforating (Volkmanns) Canal lined with endosteum, right angles to central canal.
Lacunae Small cavities that contain osteocytes
Canaliculi Hair like canals. More channels
Interstital Lamellae Filling in gaps, not part of osteon.
Circumferential Lamellae Resist Twisting.
Osteoid makes up 1/3 of bone matrix. Ground substance and Collagen Fibers.
Hydroxypaties Mineral Salts. calcium. 65% bone mass.
Created by: Jaytee07