मानवी सांगाडा Human Skeleton


 

आपल्या शरीरामध्ये असणाऱ्या सर्व हाडांचा आकार एकसारखा नसतो. प्रत्येक हाड हे वेगळे आहे. सर्व हाडांचा मिळून एक सांगाडा तयार होतो.

 

सांगाड्या मुळे शरीराला आकार प्राप्त होतो.

 

अक्षीय सांगाड्या मध्ये कवटी, पाठीचा कणा व छातीच्या पिंजऱ्याचा समावेश होतो.मानवाच्या शरीरात एकूण २०६ हाडे असतात. 

 

हाडांची रचना कठीण असते. हाडे लवचीक नसतात. हाडांची रचना मुख्यत्वे  दोन घटकांनी बनलेली असते. अस्ति पेशी जैविक  असतात, तर कॅल्शियम कार्बोनेट , कॅल्शियम फॉस्फेट , खनिज, क्षार यांसारख्या अजैविक पदार्थांपासून  हाडे बनतात.

 

कॅल्शियम मुळे  हाडांना मजबूतपणा  येतो.

 

हाडांचे चार प्रकार आहेत - चपटी हाडे , लहान हाडे, अनियमित हाडे ,  लांब हाडे. तसेच सांगाडा चे दोन भाग पडतात - अक्षीय सांगाडा व उपांग सांगाडा


Comments

Post a Comment

Popular posts from this blog

MSCI 37 Key ESG Indicators

MSCI 37 Key ESG Indicators Introduction: 1 MSCI ESG Key Issues Overview 2 Environmental (E) 2 Social (S) 2 Governance (G) 2 MSCI evaluates companies using 37 key ESG (Environmental, Social, and Governance) issues: 3 Environmental (E) 3 1. Climate Change 3 2. Natural Resources 4 3. Pollution & Waste 4 4. Environmental Opportunities 4 Social (S) 4 5. Human Capital 5 6. Product Liability 5 7. Stakeholder Opposition 5 8. Social Opportunities 6 Governance (G) 6 9. Corporate Governance 6 10. Business Ethics 6 Introduction: MSCI (Morgan Stanley Capital International) evaluates companies using 37 key ESG (Environmental, Social, and Governance) issues to assess their resilience to financially relevant, industry-specific sustainability risks and opportunities. These issues are categorized into three pillars: Environmental, Social, and Governance, and further organized into ten themes. The ratings are based on a scale from AAA (highest) to CCC (lowest) .(...
Read more

Government Launches Twin Initiatives: DDKY & National Mission on Natural Farming

Government Launches Twin Initiatives: DDKY & National Mission on Natural Farming A Transformational Step Towards Sustainable Agriculture in India Background India’s agriculture sector is at a critical crossroads. While it has successfully ensured food security, it faces increasing challenges such as: Declining soil fertility Rising input costs (fertilizers, pesticides) Climate change impacts like erratic rainfall & droughts Growing demand for chemical-free, safe food To address these concerns, the Government of India has launched two significant initiatives: DDKY (Deen Dayal Antyodaya Yojana – Skill & rural livelihood focus) National Mission on Natural Farming (NMNF) The NMNF , approved in November 2024 with an outlay of ₹2481 crore, is emerging as a game-changer in sustainable agriculture . Introduction The National Mission on Natural Farming (NMNF) aims to transform India’s farming practices by promoting: Chemical-free agriculture Soil regeneration Climate-resilient far...
Read more

Indore Municipal Corporation's Green Bond: A Milestone in Urban Sustainability

  Indore Municipal Corporation's Green Bond: A Milestone in Urban Sustainability Introduction 1 Overview of the Green Bond Issue 1 Investor Response and Subscription Details 2 Utilization of Funds 2 Listing and Future Implications 2 Conclusion 3 Introduction In February 2023, the Indore Municipal Corporation (IMC) achieved a significant milestone by issuing green municipal bonds to fund a 60 MW solar power project in Madhya Pradesh's Khargone district. This initiative marks a pioneering step for urban local bodies in India, showcasing a commitment to sustainable development and financial innovation.( mercomindia.com ) Overview of the Green Bond Issue The IMC's green bond issue aimed to raise ₹244 crore, with a base issue size of ₹122 crore and an option to retain oversubscription up to ₹122 crore. The bonds were structured into four separately transferable and redeemable principal parts (STRPPs), each with a face value of ₹250, corresponding to tenors of 3, 5, 7...
Read more