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208:, invagination is the first mechanism that takes place during gastrulation. The four largest endoderm cells induce the invagination process in the tunicates. Invagination consists of the internal movements of a sheet of cells (the endoderm) based on changes in their shape. The blastula of the tunicates is a little flattened in the
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There is more than one type of movement for invagination. Two common types are axial and orthogonal. The difference between the production of the tube formed in the cytoskeleton and extracellular matrix. Axial invagination can be formed at a single point along the axis of a surface. Orthogonal
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making a change of shape from a columnar to a wedge shape. Once the endoderm cells were invaginated, the cells will keep moving beneath the ectoderm. Later, the blastopore will be formed and with this, the invagination process is complete. The blastopore will be surrounded by the
57:. In each organism, the complexity will be different depending on the number of cells. Invagination can be referenced as one of the steps of the establishment of the body plan. The term, originally used in
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In geology, invagination is used to describe a deep depression of strata. Used by Donald L. Baars in "The
Colorado Plateau".
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113:, thus providing a much greater surface area to accommodate the protein complexes and other participants that produce
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is the first cell movement of gastrulation. This process was first described by
Conklin. During gastrulation, the
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will be gone transforming into a cup-shaped structure with a double wall. The inner wall will be called the
102:: endoderm, mesoderm, and ectoderm. More localized invaginations also occur later in embryonic development,
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is the process of a surface folding in on itself to form a cavity, pouch or tube. In
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when a vesicle forms within the cell and the membrane closes around it.
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253:. Sunderland, Massachusetts: Sinauer Associates.
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374:. Canada: CBS College Publishing. p. 599.
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168:will be transformed by the invagination. The
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274:Gilbert, Scott; Barresi, Michael (2016).
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82:takes form, and is the initial step of
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278:. Massachusetts: Sinauer Associates.
249:Embryology, Constructing the Organism
245:Gilbert, Scott; Rauno, Anne (1997).
154:Invagination process in an amphioxus
65:invagination is linear and trough.
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131:Invagination of a part of the
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316:Molecular Biology of the Cell
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318:. New York: Garland Science.
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135:into another part is called
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120:Invagination occurs during
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301:Mechanisms of Morphogensis
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331:"Biochemistry Dictionary"
299:Davies, Jamie A. (2013).
34:Mechanism of invagination
105:The inner membrane of a
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370:Browder, Leon (1984).
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115:adenosine triphosphate
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78:processes by which an
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407:Developmental biology
372:Developmental Biology
276:Developmental Biology
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43:developmental biology
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188:. Later forming the
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109:invaginates to form
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350:"Intussusception"
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353:. Retrieved
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210:vegetal pole
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194:neural crest
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84:gastrulation
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51:vegetal pole
47:gastrulation
39:Invagination
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178:archenteron
122:endocytosis
100:germ layers
396:Categories
381:4833702010
355:1 November
229:References
182:blastopore
174:blastocoel
126:exocytosis
59:embryology
206:tunicates
200:Tunicates
190:epidermis
161:amphioxus
145:Amphioxus
133:intestine
215:mesoderm
186:ectoderm
170:endoderm
166:blastula
96:organism
92:blastula
55:blastula
221:Geology
111:cristae
69:Biology
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117:(ATP).
90:, the
80:embryo
88:cells
376:ISBN
357:2012
280:ISBN
255:ISBN
192:and
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204:In
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