Zusammenfassung der Ressource
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Central nervous system development:
Antworten
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Is derived from Ectoderm
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Is derived from Endoderm
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Is derived from Mesoderm
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Develops from neuroectoderm
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Formation of neural plate and neural tube is known
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Melanocytes derived from neural crest cells
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Melanocytes are derived from Endoderm
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The first stage includes formation of neural plate
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The first stage includes formation of neural tube
Frage 2
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Central nervous system development:
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CNS appears at the beginning of the third week of embryo age
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CNS appears at the beginning of the sixth week of embryo age
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CNS appears at the beginning of the 10th week of embryo age
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Part of ectoderm differentiates into neuroectoderm
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all of the ectoderm differentiates into neuroectoderm
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The cranial open end of the tube is the anterior (rostral) neuropore
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the caudal open end of the tube is the posterior (caudal) neuropore
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the cranial open end of the tube is the posterior (caudal) neuropore
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The caudall open end of the tube is the anterior (rostral) neuropore
Frage 3
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Which glial cells differentiate from neuroectoderm?
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Ependymal cells
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Schwann cells
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Satellite cells
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Fibrous astrocytes
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Microglia
Frage 4
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From the neural crest arise:
Frage 5
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Mark proper pairs (structure and time of development):
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Closure of neuroporus anterior – 25th day of pregnancy
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Closure of neuroporus posterior – 28th day of pregnancy
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Neural plate – 17th day of pregnancy
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Neural plate – 36th day of pregnancy
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Neural groove – 18th-21st day of pregnancy
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Neural tube and Neural crest – 21st day
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Neural tube and Neural crest – thst day
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Closure of neuroporus anterior - 28th day of pregnancy
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Closure of neuroporus posterior – 25th day of pregnancy
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Neural groove - 15th day of pregnancy
Frage 6
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Find true sentence regarding the development of the nervous system:
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Schwann cells derived from neural crests
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Schwann cells derived from mesenchyme
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Neural plate appears in 17th day
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Neural plate appears in 21st day
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Neurons of CNS derived from neural tube
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Neurons of CNS derived from neural crest
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Melonocytes derived from wall of neural crest
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Melonocytes derived from ectoderm
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Neural groove (neurolation) – 18-21st day
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Neural groove (neurolation) – 25-28th day