1 / 18

Skeletal System

Skeletal System. Protecting your body. Skeletal System. System of bones and cartilage protecting your body and your vital organs while producing and storing blood . Parts of Skeletal System. Axial- center Appendicular- appendages Vertebral column- spine Thoracic Cage- ribs

alaura
Télécharger la présentation

Skeletal System

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. Skeletal System Protecting your body

  2. Skeletal System • System of bones and cartilage protecting your body and your vital organs while producing and storing blood

  3. Parts of Skeletal System • Axial- center • Appendicular- appendages • Vertebral column- spine • Thoracic Cage- ribs • Pectoral girdle- shoulders • Pelvic girdle- hips

  4. Joints- where bones connect • Cartilaginous- bones connected by cartilage- cushions, but only allows slight movement • Fibrous- non-moveable- thin layer connects bones • Synovial- allows free movement- often have a meniscus to absorb shock between the joints

  5. Examples • Cartilaginous- lower ribs • Fibrous- skull bones • Synovial- knee, shoulder, hip, fingers

  6. Types of Bone • Bone has three main layers • Periosteum- Outer surface of bone. Connects to ligaments and tendons • Compact bone- makes up outer portion under periosteum. A solid hard layer • Spongy bone- inner part of bone, matrix of material with many gaps

  7. Types of Bone

  8. Parts of a Bone • Epiphysis- top and bottom of bone, where connects to other bones • Diaphysis- the “shaft” of the bone, thinner

  9. Bone Cells • Osteocytes- small cells within the bone- many together make compact bone • Osteoblasts- create bone tissue • Osteoclasts- break down bone tissue

  10. Marrow • Cells active in the spongy section of the bone- • Work in making both red and white blood cells • Yellow marrow/pink marrow

  11. Marrow Transplant • Donors chosen based on the receptors on cell surfaces- chosen to be as close a match as possible • Patient cells killed • Cells from donor given to patient • Patient gets new immune system

  12. Bone Diseases • Rickets • Arthritis • Spina Bifida • Bone Cysts and Spurs • OsteogenesisImperfecta

  13. Rickets • Deficiency of vitamin D (with others) causes brittle formation of bones. Often characterized by bowed legs.

  14. Arthritis • Pain and inflammation of joints • Often caused by excess wear over time

  15. Spina Bifida • Very common birth defect linked to folic acid intake of mother during pregnancy • Baby born without closure of spinal column- spine often outside of body

  16. Bone Cysts and Spurs • Cyst- small fluid-filled capsule in the bone • Spur- Small growth on bone, often at site of joint- can cause severe pain

  17. OsteogenesisImperfecta • Mainly genetic dominant trait • Causes single AA substitution resulting in poor bone formation • Leads to very weak bones that are easily broken

  18. Osteogenesisimperfectaposterchild

More Related