Term
| Which flexures divide the brain and in the 4th to 5th week? |
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Definition
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Term
| What is the fate of the neural tube? |
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Definition
| It becomes the brain (rostral) and spinal cord (caudal). |
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Term
| What is the fate of the neural crest? |
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Definition
It becomes structures relating to the PNS:
1. Dorsal ganglia of spinal nerves
2. Comparable ganglia of cranial nerves
3. Autonomic ganglia
4. Secretory cells of the adrenal medulla |
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Term
| What is the fate of the neural canal? |
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Definition
| It becomes the brain ventricles and central canal of the spinal cord. |
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Term
| What is the fate of the hindbrain (rhombencephalon)? |
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Definition
| Medulla, Pons and Cerebellum. |
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Term
| What is the fate of the midbrain (mesencephalon)? |
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Definition
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Term
| What is the fate of the forebrain (prosencephalon)? |
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Definition
| Thalamus, epithalamus, hypothalamus, subthalamus and cerebral hemispheres. |
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Term
| What are the sensory and motor regions in the spinal cord and brainstem? |
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Definition
1. Sensory: alar lamina (from the dorsal neural tube)
1. Motor: basal lamina (from ventral neural tube) |
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Term
| What kind of defect is Spina Bifida? |
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Definition
| Caudal neural tube defect. |
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Term
| Anencephaly is what kind of neural tube defect? |
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Definition
| Rostral neural tube defect. |
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Term
| What kind of defect is Hydrocephalus? |
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Definition
| Blockage of cerebral aqueduct. |
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