providing easy quick learnable notes on the skeletal system. Simple with graphs and visual diagrams to improve memorisation. Good revision resource and totally recommended for science and physiology exams.
- One function of a skeleton is to enable the body to move (by using muscles)
- Another function of the skeleton is to protect the organs and nervous system.
- A third function of the skeleton is to support the body (in order for it to keep the body
shape)
- The skull contains bones that fused together after birth to protect the brain.
- The rib cage protects the heart and lungs.
- The vertebrae are bones in the backbone that protects the spinal cord and support
the body.
- There are four types of joints
● Hinge joint
● Ball and socket joint
● Pivot joint
● Fixed
- The shoulder is an example of a ball and socket joint
- The elbow is an example of a hinge joint.
- Bones are hard on the outside and soft in the middle.
- The soft tissue inside bones is called bone marrow.
- The bone marrow in the middle of the bone produces blood cells.
- A Ligament can be stretched a little to allow the joints to be flexible.
- A ligament connects bone to bone.
- The ends of a bone are covered with a smooth substance called cartilage.
- This smooth substance reduces friction between two bones and prevents them from
grinding together.
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