The adult human skeleton is a complex structure composed of 206 bones that provide support, protection, and movement for the body. Here's an overview:
Functions of the
1. Support: The skeleton serves as the framework for the body, providing a structure for muscles, organs, and tissues to attach.
2. Protection: The skeleton protects vital organs, such as the brain, heart, and lungs, by encasing them in a protective cage.
3. Movement: The skeleton enables movement by providing a system of levers and joints that allow muscles to contract and relax.
4. Blood cell production: The skeleton is responsible for producing blood cells, including red blood cells, white blood cells, and platelets.
5. Mineral storage: The skeleton acts as a storage site for minerals, such as calcium and phosphorus.
Components of the Human Skeleton
1. Axial skeleton: The axial skeleton includes the bones of the skull, vertebral column, ribcage, and sternum.
2. Appendicular skeleton: The appendicular skeleton includes the bones of the upper and lower limbs, as well as the shoulder and pelvic girdles.
Bones of the Human Skeleton
1. Cranium: The cranium, or skull, is composed of 22 bones that fuse together during childhood.
2. Vertebral column: The vertebral column, or spine, is composed of 33 vertebrae that provide support and flexibility for the body.
3. Ribcage: The ribcage is composed of 24 ribs that provide protection for the heart and lungs.
4. Sternum: The sternum, or breastbone, is a long, flat bone that connects the ribs together.
5. Upper limb bones: The upper limb bones include the scapula, humerus, radius, ulna, carpals, metacarpals, and phalanges.
6. Lower limb bones: The lower limb bones include the pelvis, femur, patella, tibia, fibula, tarsals, metatarsals, and phalanges.
Joints and Ligaments
1. Joints: Joints are the connections between bones that allow for movement.
2. Ligaments: Ligaments are fibrous connective tissues that connect bones to each other and provide stability to joints.
Image Description
Unfortunately, I'm a text-based AI and cannot provide images. However, I can suggest some reputable sources where you can find images of the human skeleton:
- Getty Images
- Wikipedia
- Kenhub
- Visible Body
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