Skeletal System - Bone Structure and Formation

What are the 5 main functions of the skeletal system?

(p.108)

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Bone is made up of ​ (a)   organic material, ​ (b)   inorganic mineral salts, and water.

(p.108)

• 35%
• 65%
• 50%
• 25%
• 75%

The organic part of bone derives from a protein called bone ______, a fibrous material that gives bone a certain degree of flexibility.

(p.108)

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NGSS.HS-LS1-6

What mineral salts make up the inorganic portion of bone, giving it its hardness and durability?

(p.108)

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Describe the process of ossification that begins during the 8th week of embryonic development.

(p.109)

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NGSS.HS-LS1-4

True or false:

The process of ossification is completed before birth.

(p.109)

• True

• False

The medical term for the soft spot on a baby’s head

(p.109)

• Fontanel

• Frontal lobe

• Occipital bone
• Bone marrow

The hollow cylinder of hard, compact bone that makes up the shaft of a typical long bone

(p.109)

• medullary cavity

• metaphysis
• diaphysis
• epiphysis

The name for the structure at each end of a long bone

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• medullary cavity

• fontanel

• diaphysis
• epiphysis

What is found inside the medullary cavity of long bones?

(p.109)

• Nerve fibers
• Yellow bone marrow

• Compact bone

• Cartilage