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Sclerotome
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Dermatome
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- sclerotome later becomes subdivided
- rostral and caudal halves separated laterally by von Ebner's fissure
- half somites contribute to a single vertebral level body
- other half intervertebral disc
- therefore final vertebral segmentation “shifts”
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- connective tissue underlying epidermis
- begins as a dorsal thickening
- spreads throughout the body
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Myotome
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- Body - epaxial and hypaxial muscles
- Limbs - flexor and extensor muscles
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