Tissue level of organization, skeletal system, joints, bone tissue
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show | group of similar cells with the same embryonic origin & function
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Histology | show 🗑
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show | 1) epithelial tissue, 2) connective tissue, 3) muscle tissue, 4) nervous tissue
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Epithelial tissues (epithelia) | show 🗑
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Function of epithelial tissue | show 🗑
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show | 1) glandular, 2) covering and lining
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show | contact points between neighboring cells; Tight, Adherens Junctions, Desmosomes, Hemidesmosomes, GAP
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show | prevent passage of substances between cells
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show | strong, prevent separation of cells
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GAP Junctions | show 🗑
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show | exposed to exterior, body cavity, lumen of organ
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basal surface | show 🗑
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show | face adjacent cells
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basement membrane | show 🗑
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Classification of covering & lining epithelia | show 🗑
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Classification of covering & lining epithelia according to cell layers | show 🗑
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show | Squamous (flat), cuboidal (cuboidal or hexagonal), columnar (tall, cylindrical), transitional (changeable shape, able to expand)
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show | exocrine, endocrine glands
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Gland | show 🗑
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show | secrete products into ducts, body surface or hollow organ
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Endocrine glands | show 🗑
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show | most abundant tissue in body, binds, supports, strengthens, protects, insulates, separates, stores energy, transports
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Structure of connective tissue | show 🗑
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show | extracellular, fibers, ground substance
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Cells of connective tissue | show 🗑
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Blasts | show 🗑
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Cytes | show 🗑
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show | between cells & fibers, fluid, semifluid, gelatinous, calcified; stores water, facilitates exchange of substances and metabolism; contains complex polysaccharides and proteins
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Fibers of matrix | show 🗑
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Collagen fibers of matrix | show 🗑
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show | thinner, elastic; in skin, blood vessels and lungs
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show | fine bundles (stroma); supporting framework of many organs
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Classification of mature connective tissue | show 🗑
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show | soft, areolar connective tissue, adipose tissue, reticular connective tissue
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show | rough, dense regular, dense irregular and elastic connective tissue
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Cartilage of connective tissue | show 🗑
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Liquid connective tissue | show 🗑
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Muscular tissue | show 🗑
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Tissue repair | show 🗑
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Tissue repair from stroma | show 🗑
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Fibrosis | show 🗑
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Tissue repair from parenchyma | show 🗑
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Factors affecting ability to regenerate | show 🗑
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show | 1) epithelial 2) connective tissue
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Epithelial membranes | show 🗑
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show | lining of body cavities open to exterior, underlying connective tissue (lamina propria), goblet and other cells produce mucous
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Serous membrane | show 🗑
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show | between sheets of serous membrane
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show | skin
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Connective tissue membranes | show 🗑
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Synovial membrane | show 🗑
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Bones in human body | show 🗑
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show | long, short, flat, sesmoid, irregular, sutural
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show | in some tendons; protection, improvement of mechanical advantage at joint; variable, not always completely ossified, very small except for patellae
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Bone surface markings | show 🗑
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Forces applied to bones | show 🗑
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show | deposition of new bone, raised rough areas
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Compression | show 🗑
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Types of surface markings | show 🗑
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show | 80 bones
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Skull bones | show 🗑
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Cranial bones | show 🗑
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Facial bones | show 🗑
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Orbits | show 🗑
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show | perpendicular to plate of ethmoid bone
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show | immovable joints found only between skull bones, moveable in children, coronal, sagittal, lambdoid, squamous
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show | cavities in some bones of skull; lined with mucous membranes continuous with lining of nasal cavity (frontal, sphenoid, ethmoid, maxillary)
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show | areas of unossified mesenchyme between cranial bones of infants, disappear after 24 months
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Hyoid bone | show 🗑
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show | spine, backbone, 26 vertebrae
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Normal curves | show 🗑
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show | kyphosis (hunchback), lordosis (sway back), scoliosis
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show | between vertebrae, annulus fibrosus, nucleus pulposus
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show | body, arch (lamina), processes (transverse, spinous, articular), vertebral foramen & notches, facets
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Regions of vertebral column | show 🗑
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show | transverse foramen & process, atlas (C1), axis (C2, dens), vertebral prominens (C7)
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Thoracic region | show 🗑
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show | large body's
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show | base, apex, fused 5 sacral vertebrae
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Coccyx | show 🗑
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show | Sternum, ribs
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show | manubrium, angle, body
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show | 12 pairs, 7 true, 5 false, 2 floating
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Appendicular skeleton | show 🗑
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Pectoral (shoulder) girdle | show 🗑
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Clavicle | show 🗑
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show | body, borders (medial, lateral), angles (superior, inferior), processes, fossae, glenoid cavity
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show | 30 bones, humerus, ulna, radius, carpals, metacarpals, phalanges
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Pelvic girdle | show 🗑
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Lower extremity | show 🗑
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show | articulations
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show | space between articulating bones and type of binding connective tissue (fibrous, cartilaginous, synovial)
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show | degree of movement; synarthrosis (immoveable), amphiarthrosis (slightly moveable), diarthrosis (moveable)
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show | lack synovial cavity, connected by fibrous connective tissue, (sutures, syndesmoses, gomphoses)
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show | synarthroses (become bone); thin layer of connective tissue, irregular, interlocking edges, between bones of skull
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show | amphiarthroses, fibrous connective tissue, space between bones (little)
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show | synarthroses, dentoalveolar joints (teeth), socket & periodontal ligaments
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show | lack synovial cavity; connected by hyaline cartilage or fibrocartilage (synchondroses, symphyses)
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Synchondroses | show 🗑
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Symphyses | show 🗑
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show | Diarthroses, synovial cavity, articular cartilage, capsule, synovial fluid, articular discs, bursae, tendon sheaths
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Articular cartilage | show 🗑
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Articular capsule | show 🗑
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Fibrous capsule | show 🗑
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Synovial membrane | show 🗑
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Synovial fluid | show 🗑
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Articular discs | show 🗑
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show | pad-like structures; connective tissue lined with synovial membrane producing synovial
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tendon sheaths | show 🗑
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show | planar, hinge, pivot, condyloid, saddle, ball & socket
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show | 1) structure/shape of articulating bones 2) strength/tension of joint ligaments 3) arrangement/tension of muscles 4) contact of soft parts 5) hormones 6) use/disuse/aging/disease
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show | decrease in angle at joint
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show | increase in angle at joint
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hyperextension | show 🗑
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abduction | show 🗑
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adduction | show 🗑
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circumduction | show 🗑
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show | around long axis of bone
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elevation | show 🗑
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show | downward movement
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show | movement anteriorly
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show | movement posteriorly
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inversion | show 🗑
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eversion | show 🗑
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show | toes toward knees
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plantar flexion | show 🗑
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supination | show 🗑
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show | palms down
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opposition | show 🗑
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Functions of bone tissue | show 🗑
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Structure of bone | show 🗑
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Diaphysis | show 🗑
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Epiphyses | show 🗑
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Metaphyses | show 🗑
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show | thin layer of hyaline cartilage covering articulating part of epiphysis
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Periosteum | show 🗑
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Medullary cavity | show 🗑
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show | membrane (connective tissue & bone forming & bone reabsorbing cells) lining medullary cavity
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show | type of connective tissue, cells & extracellular matrix (ground substance, fibers)
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show | osteogenic, osteocytes, osteoblasts, osteoclasts
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show | stem cells along inner periosteum & endosteum; undergo cell divisions
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Osteoblasts | show 🗑
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Osteocytes | show 🗑
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Osteoclasts | show 🗑
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Extracellular matrix | show 🗑
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Calcification | show 🗑
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show | 80%, strongest form of bone, under periosteum of all bones, diaphysis of long bones
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Structural units of bone tissue | show 🗑
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show | aligned along lines of stress, change according to function, central canal, perforating (Volkmann’s) canals, concentric lamellae, lacunae, canaliculi, circumferential & interstitial lamellae
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show | connection with periosteum
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show | rings of calcified extracellular membrane
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show | spaces containing osteocytes
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Canaliculi | show 🗑
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Interstitial lamellae | show 🗑
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Circumferential lamellae | show 🗑
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Spongy bone tissue | show 🗑
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show | bones have rich blood supply, good healing potential, periosteum is rich in sensory nerves, nerves & veins accompany arteries, (periosteal, nutrient arteries)
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show | enter through many perforating (Volkmann’s) canals
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show | enters through nutrient foramen (near center of diaphysis)
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show | osteogenesis (ossification), replacement of template made of connective tissue by osseous tissue, sixth week of embryonic development (intramembranous, endochondral)
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show | bone formation within mesenchyme; embryonic connective tissue (flat bones of skull, mandible)
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Endochondral ossification | show 🗑
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Epiphyseal plate | show 🗑
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Bone growth | show 🗑
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show | epiphyseal plates, growth of cartilage and its replacement by bone, (close after puberty, replaced by epiphyseal line)
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show | addition of new bone to the periphery by osteoblasts in periosteum; as new bone is deposited on the outside, osteoclasts in endosteum destroy bone on the inside – enlargement of medullary cavity
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show | ongoing replacement of old bone tissue by new one (4% per year compact; 20% per year spongy), bone resorption (osteoclasts), bone deposition (osteoblasts), adaption to function
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show | minerals, vitamins, hormones, sex hormones
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Vitamins affecting bone growth and remodeling | show 🗑
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Minerals affecting bone growth and remodeling | show 🗑
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show | human growth hormone; thyroid hormones; parathyroid hormone; calcitonin
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sex hormones and bone growth and remodeling | show 🗑
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Fracture | show 🗑
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Repair of bone | show 🗑
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Treatment of fractures | show 🗑
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show | porous bones, loss of bone mass, bone resorption outpaces bone deposition; 80% of women
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Problems associated with osteoporosis | show 🗑
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show | weight-bearing exercise, adequate calcium intake
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Reasons women’s bones are less massive then men’s bones | show 🗑
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show | bones fail to calcify, organic matrix still produced but calcium salts are not deposited and bones become “soft” or rubbery and easily deformed; lack of Vitamin D, (deficiency in diet or lack of sun)
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