pattern formation

Pattern formation - Pattern formation processes by which embryonic cells form ordered spatial arrangements of differentiated tissues Vertebrate

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Pattern formation: Pattern formation: processes by which embryonic cells form ordered spatial arrangements of differentiated tissues. Vertebrate limb: 3 dimensions Vertebrate limb: 3 dimensions promimal (close) ---- distal (far) axis anteriol ---- posterior axis dorsal ---- ventral axis
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Limbs have three dimensions ----three-axis limb Posterior Dorsal Ventral ±R ™„ “ M & &
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Limb specification Limb field Limb bud Limb Neural specification Neural plate Neural tube Brain and spinal cord Heart specification Cardiac crescent Heart tube Heart specification Origin area Primary structure Pattern Formation Morpho- genesis Organ A common model for organogenesis
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Development of the tetrapod ( ) ) limb 1) Limb specification ---- limb field 2) Primary limb structure ---- limb bud E 3) Pattern formation a. proximal-distal axis b. anterior-posterior axis c. dorsor-ventral axis 4) Morphogenesis a. coordinating the three axes b. forming digits and joints c. forming cartilages
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This note was uploaded on 09/03/2009 for the course BIO 503 taught by Professor Z.zyang during the Fall '09 term at Nanjing University.

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Pattern formation - Pattern formation processes by which embryonic cells form ordered spatial arrangements of differentiated tissues Vertebrate

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