1 / 9

Bone Development

Bone Development. George Fishback Chelsea Marsh Paulina Cywinski Colin Brannagan O’Mani Golston Stephannie Grybet Alec Mackethon. What is Ossification?. The process of laying down/creating new bone. Bones affected Third month of embryonic development

ban
Download Presentation

Bone Development

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Bone Development George Fishback Chelsea Marsh Paulina Cywinski Colin Brannagan O’ManiGolston StephannieGrybet Alec Mackethon

  2. What is Ossification? • The process of laying down/creating new bone. • Bones affected • Third month of embryonic development • Ossification in long bones beginning • Fourth month • Most primary ossification centers have appeared in the diaphyses of bone. • Birth to 5 years • Secondary ossification centers appear in the epiphyses • 5 years to 12 years in females, 5 to 14 years in males • Ossification is spreading rapidly from the ossifcation centers and various bones are becoming ossified • 17 to 20 years • Bone of upper limbs and scapulae becoming completely ossified • 18 to 23 years • Bone of the lower limbs and oscoxaebecome completely ossified • 23 to 25 years • Bone of the sternum, clavicles, and vertebrae become completely ossified • By 25 years • Nearly all bones are completely ossified

  3. Formation of hand…

  4. Intramembranous Ossification • Formation of bone spicules • Formation of woven bone replaced by lamellar bone • Creates bone

  5. Endochondral Ossification • One of the processes that results in the creation of bone • During fetal development • Creates Cartilage • a specialized fibrous connective tissue

  6. Endochondral Ossification Continued • Endochondral ossification is one of two essential processes in fetal development by which bone tissue is created. Unlike intramembranous ossification, which is the other process by which bone tissue is created, cartilage is present during endochondral ossification. This process is also essential during the formation of long bones, the growth of the length of long bones, and the natural healing of bone fracture.

  7. Osteoblasts • One of two primary cell types used to produce and maintain bone. • Cells that create bone.

  8. Osteoclasts • The cells that reabsorb, or break down and absorb, bone tissue back into the body. • Highly specialized cells that have to work in perfect synchronization with osetoblasts.

  9. Video • http://www.youtube.com/watch?v=78RBpWSOl08&feature=relmfu&safety_mode=true&persist_safety_mode=1&safe=active

More Related