题目内容

What are the functions of the skeletal system?

A. protection
B. support
C. mineral storage
D. blood cell production

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when it comes to the protection of skeletal system, which are the following statements CORRECT?

A. cranial bones protect the brain
B. vertebrae protects the spinal cord
C. sternum protects the heart and lungs
D. pelvis protects the internal reproductive organs

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_ and _ are principal minerals that are stored in bones.

A. manganese
B. calcium
C. phosphorus
D. magnesium

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On the basis of shape, almost all the bones may be classified into four main types: ___, _, _, and ___.

A. long
B. short
C. irregular
D. flat

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Examples of flat bones include _____.

A. sternum
B. ribs
C. cranial bones
D. scapulae

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What are the functions of the skeletal system?

A. protection B. support C. mineral storage D. blood cell production

when it comes to the protection of skeletal system, which are the following statements CORRECT?

_____ and _____ are principal minerals that are stored in bones.

On the basis of shape, almost all the bones may be classified into four main types: _____, _____, _____, and _____.

Examples of flat bones include _____.

A. protection
B. support
C. mineral storage
D. blood cell production

_ and _ are principal minerals that are stored in bones.

On the basis of shape, almost all the bones may be classified into four main types: ___, _, _, and ___.