This being human is a guest house. Every morning is a new arrival. A joy, a depression, a meanness,
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Anatomy and Physiology
1. Anatomy and Physiology Basics 2. Cells and Tissues 3. Cell Physiology 4. Skin and Membranes 5. Skeletal System •
5.1. Overview
• 5.2. Functions and Divisions of the Skeletal System • 5.3. Bone and Cartilage Types • 5.4. Structures of Long Bones • 5.5. Joint Structure and Function • 5.6. Bone Formation and Growth • 5.7. Blood Calcium Regulation and Skeletal Anatomy
• Self Assessment 6. Muscular System 7. Nervous System (Part I) 8. Nervous System (Part II) 9. Endocrine System 10. Reproductive Systems 11. Cardiovascular System 12. Respiratory System 13. Digestive System 14. Urinary System 15. Microbiology 16. Lymphatic System and Immunity Listen [English Audio]
Functions and Divisions of the Skeletal System The Skeletal System is the internal support and movement system composed bones, joints, cartilage and ligaments. Bones have various functions including: Support –Support the body against gravity Protection – Keep the soft internal organs “packed” safely inside the body; internal organs are easily injured Movement – Limbs act as rigid levers against which muscles can work Storage – Fat, minerals (Calcium) Blood cell formation – Hematopoiesis in the marrow There are two main divisions in theSkeletal System related to both their location and function. The axial skeleton is found along the longitudinal (vertical) axis of the body, and includes the skull and vertebrae. The appendicular skeleton includes the bones of the limbs and the girdles to support the limbs.
Figure 5.2 - Divisions of theSkeletal System The axial skeleton consists of the skull, vertebral column, ribs and sternum (shown in yellow). The appendicular system consists of the limbs and limb girdles (shown in blue).