题目内容

The loss of calcium from bones might lead to _____.

A. osteoporosis
B. paget's disease
C. anemia
D. calcemia

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A decrased ability to produce the organic portion of bone matrix may cause the elders' bone susceptible to _____.

A. fracture
B. osteoma
C. arthritis
D. neoplasm

_____ can actually prevent one from reaching an average adult height.

A. premature puberty
B. excessive deposition of calcium
C. too much growth hormone
D. too many protein-digesting enzymes

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?

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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