Lecture 8: Skeletal System: Axial
Skeleton
24 Sept 1999
I. long axis of the body
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sites for muscle attachment
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prevents telescoping of the body
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supports the weight
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two components
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notochord
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vertebral column
II. Components
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vertebrae
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regions
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centra
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ribs
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sternum
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gastralia
III. Development
IV. Phylogeny
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Agnaths
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Gnathostomes
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tetrapods
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amniotes
V. form and function
VI. designs of vertebrae
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direction of neural spine
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height of spine