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Bones

Date post: 24-Feb-2016
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Bones. Year 10AADP. The Skeletal System. The human adult body has 206 bones. The human baby when born has between 300 and 350 bones. Interesting skeleton facts!. 1. The smallest bone in the human body is the stapes or stirrup bone located in the middle ear . It is 2.8mm in length. - PowerPoint PPT Presentation
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Bones Year 10AADP
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Page 1: Bones

BonesYear 10AADP

Page 2: Bones

The Skeletal System• The human adult

body has 206 bones.

• The human baby when born has between 300 and 350 bones.

Page 3: Bones

Interesting skeleton facts!• 1. The smallest bone in the human body is the

stapes or stirrup bone located in the middle ear. It is 2.8mm in length.

• 2. Human thigh bones are stronger than concrete, the Femur bone as it’s called – the biggest and strongest bone in our body. It is easily capable of lifting or supporting 30 times its own volume and weight or up to 2 African elephants.

• 3. There are about 206 bones in a grown-up’s body. But more than half of them are located just in our hands and feet!

Page 4: Bones

More facts4. Apart from having more bones, another interesting baby fact is that they don’t have kneecaps!

5. . There are around 14 bones are in the face, 8 bones are in each wrist, 27 bones in each hand, 23 bones are in each foot including the ankle and 30 bones in the skull.

6. Bones consist of 50% water and 50% solid matter.

7. Adult human bones account for 14% of the body’s total weight.

Page 5: Bones

Functions of the skeleton• The skeleton has 4

major functions.

1. It supports the organs and muscles of the body.

2. It provides protection for internal organs.

Page 6: Bones

Functions of the skeleton

3. It provides a base for muscles to attach and allows movement.

4. The bones are where red and white blood cells are made and storage of minerals.

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Axial and Appendicular Skeleton• The skeleton is

divided up into 2 main groups.

• The axial skeleton and appendicular skeleton.

Page 10: Bones

The Axial Skeleton• The axial skeleton

consists of.

• The skull• The spine• The ribs and

sternum

Page 11: Bones

The Appendicular Skeleton• The Appendicular

Skeleton consists of

• The shoulder, arm and hand (shoulder girdle).

• The pelvis, leg and foot.

Page 12: Bones

The Spine (vertebral column) • The spines purpose is

protection, movement and support.

• It consists of the• Cervical vertebrae• Thoracic vertebrae• Lumbar vertebrae• Sacrum• Coccyx

Page 13: Bones

The Spine• 33 vertebrae• 7 cervical• 12 thoracic• 5 lumbar• 5 sacrum (fused)• 4 coccyx


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