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Bones, bones, and more bones

Bones, bones, and more bones. Wednesday Dec 7. Bone Classification. The skeleton can be divided into ______ broad categories based on their individual shapes Objective: To learn the categories and be able to put various bones into their appropriate category. Flat bones. Flat bones

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Bones, bones, and more bones

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  1. Bones, bones, and more bones Wednesday Dec 7

  2. Bone Classification • The skeleton can be divided into ______ broad categories based on their individual shapes • Objective: To learn the categories and be able to put various bones into their appropriate category.

  3. Flat bones • Flat bones • _______, roughly parallel surfaces • Functions • Provide __________ for underlying soft tissues • Provides extensive surface area for the attachment of ___________________

  4. Irregular bones • Shape • Complex shape with short, flat, notched, or rigid surfaces • Examples • ______________ • Bones of the Pelvis • Some skull bones

  5. Short bones • Shape • ___________ and boxy • Examples • Carpals • Tarsals

  6. Long Bones • Long bones • Relatively long and slender • Examples • ________________ • Phalanges • Radias • Factiod • The femur is the largest and heaviest bone in the body. The body is usually _______ times the length of this bone

  7. Sutural Bones • Sutural bones (Wormian bones) • Known as extra sutural bones • Small, flat, irregularly shaped bones between the flat bones of the skull • Factoid • These bones __________ in number, shape, and position of sutural bones. • Borders are like pieces of a jigsaw _____________, size ranges from a grain of sand to a quarter

  8. Sesamoid Bones • Sesamoid Bones • Small, flat, and shaped somewhat like a ________________ seed. Develop inside tendons and are most commonaly located near joints at the knees, the hands, and the feet. • Factoid • Everyone has 2 patella but there is potential for up to 26 of these bones

  9. The Skull • Contains ______ bones: 8-cranium (braincase) and 14-facial • ____ bones are associated with the skull in addition to the 22 above • Inside- blood vessels, nerves, and membranes that stabilize the position of the brain are attached to the inner surfaces of the skull • Outside- The outer surfaces provides an extensive area for the attachment of ______________ that move the eyes, jaws, and head

  10. Termanology • In the adult skull ____________________are the immovable joints between the skull bones • ______________ bones(skull bones) form the cranium. This protects the, a fluid-filled chamber that cushions and supports the brain. • ______________bumps on the bones

  11. Occipital bone • The lamboid suture arches across the posterior surface of the skull, superior to the Occipital bone.

  12. Parietal Bones • There are 2 • Seperated by the ______________ suture

  13. Frontal Bones • ______________ suture attaches the frontal bone to the parietal bones on either side • Forms the anterior of the cranium • Forms the roof of the Orbits (eye socket)

  14. Temporal Bones • There are 2 • The Squamous suture forms a boundry temporal and parietal bones Mastoid Process Styloid Process

  15. Sphenoid Unites cranial and facial bones Forms part of the floor of the cranium. A cross brace that strengthens the sides of the skull

  16. Zygomatic Bones • There are 2 • Form part of the _________________ • Forms the lateral wall of the orbit (eye socket) Temporal Process Zygomatic Process The two processes form the zygomatic arch

  17. Nasal Bones Supports the superior portion of the bridge of the nose. Conects to cartilage the will support the distal portion of the nose

  18. Ethmoid • Forms • The anteromedial floor of the cranium • The roof of the nasal cavity • Part of the nasal septum • Medial orbital wall

  19. Maxillae • Supports the upper teeth • Forms the inferior portion of the orbital rim • Upper jaw • Most of the hard palate

  20. Mandible • Lower portion of the jaw

  21. Small bones Lacrimal bones Palatine bones

  22. Vomer Conche

  23. Hyoid • __________________ bone • Supports the larynx • The attachment site for muscles of the larynx, pharynx, and tongue

  24. Auditory ossicles • Located with in the ______________ ear cavity • Enclosed in the _________________ bone • Allow us to hear by conducting vibrations produced by sound waves

  25. Processes • A ___________ feature that changes as we change • Increases bone surface area, provides more places for ___________ to attach • Larger processes grow for attachment of well developed muscles Funny bone

  26. Processes • Olecranon • 2 styloid processes

  27. Malleolus processes • epicondyle

  28. Illiac Crest, ischialtuberocity, ischial spine

  29. Notch at the top- Suprasternal notch

  30. Acromion • Spinous

  31. Gender Differences

  32. Femure • Length: Male >450 mm; Female <390 mm (uncertain range 405-430mm) • Femure head diameter: Male >45.5 mm; Female <41.5 (uncertain range 43.5-44.5 mm)

  33. Class Chp 6 Bone • Chp 6.7 for fetal skeleton • Chp 7.8 for fetal cranium • Knowledge Quiz

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