Biology 5

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  • Created by: enause
  • Created on: 20-02-14 13:25
What are the three advantages of an internal skeleton over an external skeleton?
It is more flexible, it gives the body support and provides it framework, it can easily grow with the body
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Why is it unwise to move someone with a broken bone?
It can damage nearby tissue
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What process turns cartilage into bone?
Ossification
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Describe the process that turns cartilage into bone.
Blood vessels deposit calcium and phosphorus in the cartilage which eventually turns to bone. (Ossification)
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What is bone marrow and what does it do?
It is a spongy substance that is found in some long bones, they make new blood cells.
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What is the main type of joint in the body?
Synovial Joint.
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What are the bones at a synovial joint hels together by?
Ligaments
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What are the properties of the ligaments holding the bones of a synovial joint together?
They have a high tensile strength and are elastic.
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Why are the ends of bones covered in cartilage?
To stop the bones from rubbing together and to act as a shock absorber.
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What does the synovial membrane release and why?
Synovial fluid to lubricate the joints.
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What are the different types of joint? Give examples.
Ball and socket (hip, shoulder), Hinge (Knee or elbow)
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How are bones attatched to muscles?
By tendons
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Other cards in this set

Card 2

Front

Why is it unwise to move someone with a broken bone?

Back

It can damage nearby tissue

Card 3

Front

What process turns cartilage into bone?

Back

Preview of the front of card 3

Card 4

Front

Describe the process that turns cartilage into bone.

Back

Preview of the front of card 4

Card 5

Front

What is bone marrow and what does it do?

Back

Preview of the front of card 5
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