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Skeletal System Mr. Royer. Skeletal System A system made up of bones (206), joints (5 types), and connective tissue (3 types)

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Presentation on theme: "Skeletal System Mr. Royer. Skeletal System A system made up of bones (206), joints (5 types), and connective tissue (3 types)"— Presentation transcript:

1 Skeletal System Mr. Royer

2 Skeletal System A system made up of bones (206), joints (5 types), and connective tissue (3 types)

3 Functions of Skeletal System 1.Movement- bones provide points of attachment for muscles 2.Support- Give our body shape and structure 3.Protection- our skull and ribs protect the brain and internal organs 4.Blood cell production-white and red blood cells are produced in the bone marrow of the long bones 5.Storage of minerals-calcium and phosphorus

4 Types of Bones 1.Long Bone=Femur 2.Short Bone=Fingers, Toes 3.Flat Bone=Ribs, Sternum 4.Irregular Bone=vertebrae 5.Sessamoid Bone=Patella

5 Types of Joints  Ball and Socket- shoulder and hip allows most movement  Hinge- Knee and elbow  Pivot- Neck  Saddle- Hand and wrist  Immovable or Suture- Skull

6 Connective Tissue Ligament- connect bone to bone Tendon- connects muscle to bone Cartilage- cushions joints

7 The Spinal Column The main function of the spine is to protect the spinal cord The spinal column consists of 3 main areas: 1.Cervical spine – the neck- has 7 vertebrae 2.Thorasic spine-the upper back-has 12 vertebrae 3.Lumbar spine- the lower back-has 5 vertebrae

8 Other Skeleton facts  Each hand has 27 bones  Our hands and feet together contain over half of the bones in or body  Pound for pound bones are stronger than steel

9 Skeletal System Problems  Fracture- a break in a bone  Dislocation- when a bone pops or moves out of place  Osteoporosis- bones become brittle or weak, bone density decreases  Arthritis- joints are painful and inflamed  Sprain-the ligaments are stretched or torn


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