Skeletal system (अस्थि तंत्र)

Skeletal system (अस्थि तंत्र) with basic explanation.

1. Skeletal System अस्थि तंत्र BY Prof. Nilachal

2. Bone ( अस्थि ) Bone , rigid body  tissue  consisting of cells embedded in an abundant hard intercellular material. The two principal components of this material,  collagen  and  calcium  phosphate, distinguish bone from such other hard tissues as  chitin ,  enamel , and shell. Bone tissue makes up the individual bones of the  human skeletal system  and the  skeletons  of other  vertebrates . ढाँचा रक्षा

3. Types ( प्रकार ) Exo Skeletal (बाह्य) An exoskeleton is the external skeleton that supports and protects an animal's body, Indo Skeletal (आंतरिक) An  endoskeleton  is an internal support structure of an  animal , composed of  mineralized tissue .

4. Exo Skeletal (बाह्य)

5. E ndo Skeletal (आंतरिक)

6. ?

7. Skeletal System

8. Skeleton

9. Axial Skeleton (अक्षीय कंकाल) Total= 80 Bones Skull (खोपड़ी) - 22 Hyoid-1 Auditory Ossicles-6 Malieus Incus Stapes Vertebral Column (मेरुदंड) -26 Thorax ( वक्ष ) -25 Sternum (उरो अस्थि- 1 ) Ribs (पसली पिंजर- 24 )

10. Appendicular Skeleton (उपांगीय कंकाल) Total = 126 Upper Limb - 60 Lower Limb – 60 Clavicle -2 Scapula अंश मेखला - 2 Pelvic श्रोणी मेखला (Hip) - 2

11. Functions of Skeletal system Support ( आकार और सहारा ) Movement (संचलन में सहायता) Protection (आंतरिक अंगों की सुरक्षा) Production of Blood cells (रक्त कोशिकाओं का उत्पादन) Storage of Minerals (खनिजों का भंडारण)

12. Development of Bone Tissue ( अस्थि रचना ) (Osteogenesis or Ossification)

13. For flat bones. Starts from the Mesenchymal cell

14. Intramembranous Ossification

15. Ossification at 12 Weeks

16. Stages of Endochondral Ossification

17. END.