Rosie Diamond's Profile

Member since Jun 21, 2009, follows 0 people, 10 public groups, 2106 public bookmarks (2162 total).

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  • Skeletal System Introduction - The Anatomy Wiki on 2009-11-15
    • Osteology: The scientific study of bones.
      Sutural bones/wormian bones: Extra bones within joints (sutures) of the skull.
      Sesamoid bones: Extra bones within tendons from repeated stress as the tendon moves across a joint. (develop by intramembraneous ossification inside tendons)
      C-shaped hyaline rings: Cartilaginous rings in the respiratory tract that keep the walls of the trochlea and smaller airways open.
      Hyaline cartilage: A clear colored cartilage found in much of the respiratory tract, joints, growth plates, and the fetal skeleton. (most abundant c. in body)
      Fibrocartilage: Act as shock absorbers found in places such as between vertebrae and in the symphasis pubis. There is an extracellular matrix with thick collagen fibers that help resist stretching and compression.
      Elastic cartilage: Also with an extra cellular matrix, it is found in places in need of highly flexible support i.e. external ear, ear canal, epiglottis.
      Calcification: Deposition of minerals in the matrix of bone connective tissue to make bone sturdy.
      Hemopoisis/hematapoisis: The process of blood cell formation carried out by stem cells in the red bone marrow of spongy bone.
      Erythropoietin: Hormone produced by the kidneys, it stimulates hematapoisis.
      Ossification/Osteogenesis: To turn (cartilage) into bone.
      Long bones: Typically function as levers and are bones of the upper and lower extremities.
      Short bones: Cube-shaped and act to transfer forces. Bones of wrist and ankle.
      Flat bones: Broad with a dense surface for muscle attachment or protection of underlying organs. Roof of skull, scapulae, sternum, ribs.
      Irregular bones: Varied in shape with projections for muscle attachments or articulation. Vertebrae, several bones in skull i.e. sphenoid, ethmoid, etc.
      Diaphysis: Central shaft of long bones
      Medullary cavity/marrow cavity: Hollow space within diaphysis. Contains yellow marrow in adults and red marrow in growing children.
      Endosteum: Lining of medullary cavity. Helps remodel medullary cavity during bone growth and repair.
      Epiphysis: Knobby ends of long bones. Outer layer of compact bone and inner layer of spongy bone. At a joint surface, it is covered in hyaline cartilage called articular cartilage, which helps reduce friction and absorb shock in movable joints.
      Periosteum: Tough sheath of dense irregular connective tissue around the outer surface of bone (except areas covered by art. cartilage). Serves as a place for tendon-muscle attachment to bone. **Periosteum is responsible for the growth in the width of bone by pulling stress on the periosteum.
      Epiphyseal growth plate: Located between epiphysis and diaphysis in growing children/teenagers. **Composed of hyaline cartilage with high mitotic activity that helps bones grow in length.
      Epiphyseal line: Remnant of e. growth plate in adults when bones are done growing.
      Osteoblasts: **Lay down the ground substance that creates new bone. Secrete initial form of bone matrix called osteoid which calcifies to become bone. (happens on the outside of bone)
      Osteoclasts: **Maintains matrix of bone by breaking in down. This process is called osteolysis. (happens in the inside of bone)
      Intramembraneous ossification: Takes existing membranes & lays down bone tissue. Produces flat bones of the skull and some facial bones. This is why babies have soft spots- the membraneous tissue hasn't hardened yet.
      Endochondral ossification: Cartilage is replaced with bone. Occurs with the majority of the skeleton.
      Growth hormone/somatotrophin: Produced in pituitary gland and stimulated activity in e. growth plates.
      Sex hormones-estrogen and testosterone: Dramatically accelerate bone growth at the e. growth plates at puberty.
      Vitamin A: activates/stimulates osteoblasts
      Vit. C: required for normal synthesis of collagen, the primary component in bone matrix.
      Vit. D: stimulates the absorption and transport of calcium and phosphate ions into the blood for possible storage in the bone.
      Condyle: large, smooth rounded articulating oval structure
      Facet: small, flat, shallow art. surface
      Head: prominent, rounded epiphysis
      Alveolus: deep pit/socket in upper jaw
      Fossa: flattened or shallow depression
      Crest: narrow, prominent, ridge-like projection
      Epicondyle: projection adjacent to a condyle
      Process: any marked, bony prominence
      Spine: pointed, slender process
      Trochanter: massive, rough projection found only on proximal, lateral end of femur
      Tubercle: small, round projection
      Tuberosity: large, rough projection
      Fissure: narrow, slit-like opening through a bone
      Foramen: rounded passageway through a bone
      Sinus: cavity or hollow space in a bone
  • Illu_bone_growth.jpg (JPEG Image, 520x310 pixels) on 2009-11-15
  • Heraldry on 2009-11-14
    • A heraldic device became family property and a father who had impressed in battle desired to pass on to his sons the same heraldic pattern. In this way a family’s reputation was maintained.
  • Feudal Services on 2009-11-14
    • Feudalism and
      feudal services dominated the life of a medieval
      peasant
      .
    • Feudal services and the whole concept of feudalism kept the peasant poor.
  • The Lifestyle of Medieval Peasants on 2009-11-14
  • The Poor Peasant on 2009-11-14
    • Very few people cared about the poor in Medieval
      England
      and the lifestyle of peasants
      was harsh with no structured support services available to them
  • Medieval Women on 2009-11-14
    • Medieval
      England
      was not a comfortable place for most women.
    • Medieval women
      invariably had a hard time in an era when many men lived harsh lives. A few
      women lived comfortable lives but Medieval society was completely dominated by
      men and women had to know 'their place' in such a society.






    • 7 more annotations...
  • Medieval Clothing on 2009-11-11
    • Medieval Clothing - Image 1
  • Sumptuary Laws of the Middle Ages on 2009-11-11
    • Laws dating back to the Romans restricted ordinary people in their expenditure. These were called Sumptuary Laws.
    • English Sumptuary Laws were imposed by rulers to curb the expenditure of the people.
    • 2 more annotations...
  • Middle Ages Clothing on 2009-11-11
    • Middle Ages Clothing
      Middle Ages clothing and fashion like everything else was dictated by the Pyramid of Power which was the Middle Ages Feudal System.

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    Seeking links to address world challenges 1. End Hunger 2. Universal Education 3. Gender Equity 4. Child Health 5. Maternal Health 6. Global Health 7. Environmental Sustainability 8. Global Partnership. All Millennium Development Goals. Asserts science, technology and entrepreneurship essential

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    I am looking to create a comprehensive library of documents outlining the reasons for the invasion of Iraq and subsequent documents showing their inaccuracy and falsehoods. Please highlight or 'sticky' any time Bush, Blair, etc. claimed WMDs ora any other justification.

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    Negotiations for peace can be covered here

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