Human anatomy 3

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Author:
kwoolley
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39141
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Human anatomy 3
Updated:
2010-10-17 01:06:08
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Human anatomy bones joint
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Learning objectives for week 2
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  1. Axial skeleton
    one of the classification of the skeletal system, this is composed of the bones along the central axis of the body (skull, the vertebral column, and the thoracic cage)
  2. Appendicular skeleton
    Contains bones of the appendages (upper lower limbs) as well as the bones that hold the limbs to the trunk of the body (pectoral and pelvic girdles)
  3. Sphenoid bone
    Greater and lesseer wing, the pituitary gland in the hypophyseal fossa is the depression and the sella turcica is the bony enclosure.
  4. Paranasal sinuses
    are a group of air filled chambers that open into the nasal cavities. The sinuses have a mucous lining that helps to humidify and warm inhaled air. Additionally, the sinus spaces in some skull bones cause these skull bones to be lighter and also provide resonance to the voice.
  5. Orbital complex bones
    the roof is formed from the frontal bone and the lesser wing of the sphenoid bone. the floor of the orbit is the surface of the maxilla along with the zygomatic bone and the palatine bone. The medial wall is formed from the frontal process of the maxilla, the lacrimal bone and ethmoid bone.
  6. Atlas
    C1 the first cervical vertebr supports the head via its articulation with the occipital condyles of the occipital bone, permits us to nod yes, lacks a body and a spinous process.
  7. Axis
    C2 During development, the body of the atlas fuses to the body of the 2nd cervical vertebra, the prominent dens permits us to shake our heads no. Any trauma that dislocates the dens often results in severe injury.
  8. True Ribs
    1-7 connect individually to the sternum by separate cartilaginous extensions called costal cartilages, the smallest true rib is the first.
  9. False Rib
    8-12 their no costal cartilages do not attach directly to the sturnum.
  10. Floating Rib
    11-12 The last 2 pairs of false ribs have no connection with the sternum.
  11. Fibrous joint
    occurs where bones are held together by dense regular connective tissue
  12. cartilaginous joint
    occurs where bones are joined by cartilage.
  13. synovial joint
    has a fluid filled joint cavity that separates the articulating surfaces of the bone. The articulating surfaces are enclosed within a capsule and the bones are also joined by various ligaments.
  14. Synarthrosis
    is an immobile joint
  15. amphiarthrosis
    is a slightly mobile joint
  16. diarthrosis
    is a freely moving joint
  17. Gomphoses
    only one is the articulations of the roots of individual teeth with the sockets of the mandible and the maxillae.
  18. Bursa
    a fibrous, saclike structure that contains synovial fluid and is lined by a synovial membrane. Bursae are found around most synovial joints and also where bones,ligaments, muscles, skin or tendons overlie each other and rub together. Alleviate the friction. An enlongated bursa is called a tendon Sheath
  19. Plane joint
    least mobile type of diarthrosis, only side to side movements are possible. The articular surfaces of the bones are flat and planar.
  20. Hinge joint
    one articulating bone fits into a concave depression on the other bone. movement confined to a single axis, like the hinge on the door.
  21. Pivot joint
    a unaxial joint in which one articulating bone with a rounded surface fits into a ring formed by a ligament and another bone.
  22. Condylar joints
    biaxial joints can move in 2 axes such as back and forth and side to side
  23. saddle joint
    articular surfaces of the bones have convex and concave regions that resemble the shape of the saddle (the thumb)
  24. Ball and socket joint
    head of one bone fits into the rounded cuplike socket of a 2nd bone.

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