Presentation on theme: "The Human Skeletal System Formation of Bones and Injuries to the Skeleton."— Presentation transcript:
The Human Skeletal System Formation of Bones and Injuries to the Skeleton
Bone Formation When you are born you have more cartilage than bone and this gradually changes over time in a process known as ossification. There are 4 basic steps in bone formation.
Steps in Ossification Bone cells absorb calcium. Once absorbed, the calcium changes into calcium compounds. The calcium compounds cannot dissolve in water so they stay in the cells of the bone The calcium compounds harden and form bone.
Ossification Timeline Ossification begins at birth and is usually completed between the ages of 18 and 25. During this time period it is very important for you to have a healthy diet so your bones are strong.
Skeletal System Problems There are times when the skeletal system is not working correctly. This can be due to an injury or some sort of disease or disorder that affects the skeletal system
Fracture A fracture is a broken bone. There are several different types of fractures.
Greenstick Fracture A greenstick fracture is a break in the bone that does not go all the way through. The bone will be casted until new bone cells can form and the bone becomes strong again.
Simple Fracture With a simple fracture the bone has broken all of the way through but the skin around the bone has not broken. The doctor will set the bone back together and put a cast on it.
Compound fracture In a compound fracture the bone has completely broken along with the skin. The bone may need screws to hold it in place while it heals along with a cast. The skin will also need to be stitched.
Dislocation Along with broken bones, injuries can result in dislocations. A dislocated bone is one that is moved out of place. This can result in torn or stretched ligaments.
Arthritis Arthritis is inflammation or swelling of joints and it can be very painful! Most common in older people but there are also juvenile forms of arthritis.
Rickets Rickets is a disease that occurs in children who do not get enough calcium and vitamin D in their diets and their bones do not form properly. Bones become soft and weak. Children may become bow-legged as a result of rickets.