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| :'''Scelerotome''' - develops into axial skeleton, ribs and vertebrae. | | :'''Scelerotome''' - develops into axial skeleton, ribs and vertebrae. |
| :'''Dermomyotome''' - develops into ''myotome'' and ''dermotome''. | | :'''Dermomyotome''' - develops into ''myotome'' and ''dermotome''. |
− | ::'''Myotome''' - develops into skeletal muscle of the limbs and body. | + | ::'''Myotome''' - develops into [[Muscles - Anatomy & Physiology#Skeletal Muscle|skeletal muscle]] of the limbs and body. |
− | ::'''Dermotome''' - develops into the dermis. | + | ::'''Dermotome''' - develops into the [[Skin - Anatomy & Physiology#Dermis|dermis]]. |
| *Somites develop in an identical manner, although those at the posterior develop after those at the anterior. | | *Somites develop in an identical manner, although those at the posterior develop after those at the anterior. |
| *Somitic derivatives form according to the somite's position along the anterior - posterior axis. | | *Somitic derivatives form according to the somite's position along the anterior - posterior axis. |
| **Formation of sclerotome, myotome and dermotome is not intrinsic, but governed by '''environmental signals'''. | | **Formation of sclerotome, myotome and dermotome is not intrinsic, but governed by '''environmental signals'''. |
− | **However, positional information is '''predetermined and intrinsic''' to the somite. Positional information is important to form the appropriate type of vertebrae, muscle and skin along the anterior - posterior axis. | + | **However, positional information is '''predetermined and intrinsic''' to the somite. Positional information is important to form the appropriate type of vertebrae, [[Muscles - Anatomy & Physiology|muscle]] and [[Skin - Anatomy & Physiology|skin]]long the anterior - posterior axis. |
| **Positional information is governed by HOX gene expression. Each somite expresses a unique number of HOX genes. | | **Positional information is governed by HOX gene expression. Each somite expresses a unique number of HOX genes. |
| *The chick has 12 somites. | | *The chick has 12 somites. |