The skeletal system
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The Skeletal System. Bones Cartilage Joints. The Skeletal System Includes . Cartilage – Strong connective tissue that supports the body and is softer and more flexible than bone. Does not contain blood vessels.

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Presentation Transcript

The skeletal system includes

Bones

Cartilage

Joints

The Skeletal System Includes


Cartilage

  • Cartilage – Strong connective tissue that supports the body and is softer and more flexible than bone.

    • Does not contain blood vessels.

    • Found in the parts of the body that are flexible: tip of the nose and the external ears.

Cartilage


Joints

  • Joint - A place where one bone attaches to another bone.

Joints


Purpose of the skeletal system

  • Support the body

  • Provides for movement

    • Bones provide a system of levers on which muscles act to produce movement.

  • Protects internal organs

  • Provide a site for blood cell formation

    • Blood cells are produced in the soft marrow tissue that fills the internal cavities in some bones.

  • Stores mineral reserves such as calcium

Purpose of the Skeletal System


Development of bones

Development of Bones


Development of bones continued

Development of Bones (Continued)


Bones in the human skeleton

  • There are 206 bones in the adult human skeleton of cartilage at these plates causes the bones to lengthen. During late adolescence or early adulthood, the cartilage in the growth plates is replaced by bone, the bones become completely ossified, and the person “stops growing.” !

Bones in the Human Skeleton


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