Template:Neural terms: Difference between revisions
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* '''neuroblast''' - undifferentiated neuron found in ventricular layer of neural tube. | * '''neuroblast''' - undifferentiated neuron found in ventricular layer of neural tube. | ||
* '''neurohypophysis''' - (posterior pituitary=pas nervosa) | * '''neurohypophysis''' - (posterior pituitary=pas nervosa) | ||
* '''neuromere''' - term used to describe the segmental region of the neural tube. | |||
* '''neuron''' - The cellur "unit" of the nervous system, transmitting signals between neurons and other cells. The post-mitotic cells generated from neuroepithelial stem cells (neuroblasts) in ventricular zone of neural tube. | * '''neuron''' - The cellur "unit" of the nervous system, transmitting signals between neurons and other cells. The post-mitotic cells generated from neuroepithelial stem cells (neuroblasts) in ventricular zone of neural tube. | ||
* '''neuropore''' - opening at either end of neural tube cranial (rostral, anterior) neuropore closes (day 25) about 2 days before caudal (posterior) that closes at somite level 32 to 34. Neural Tube Defects (NTDs) can be due to failure of these two neuropores to close. | * '''neuropore''' - opening at either end of neural tube cranial (rostral, anterior) neuropore closes (day 25) about 2 days before caudal (posterior) that closes at somite level 32 to 34. Neural Tube Defects (NTDs) can be due to failure of these two neuropores to close. | ||
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* '''prosencephalon''' - (forebrain), the most cranial portion of the 3 primary vesicle brain (week 4). (sc-R-M-'''P''') | * '''prosencephalon''' - (forebrain), the most cranial portion of the 3 primary vesicle brain (week 4). (sc-R-M-'''P''') | ||
* '''Rathke's pouch''' - a portion of the roof of the pharynx pushes upward towards the floor of the brain forming the anterior pituirary (adenohypophysis, pars distalis, pars tuberalis pars intermedia). Where it meets a portion of the brain pushing downward forming the posterior pituitary (neurohypophysis, pars nervosa). Rathke's pouch eventually looses its connection with the pharynx. (Martin Heinrich Rathke 1973-1860, embryologist and anatomist) | * '''Rathke's pouch''' - a portion of the roof of the pharynx pushes upward towards the floor of the brain forming the anterior pituirary (adenohypophysis, pars distalis, pars tuberalis pars intermedia). Where it meets a portion of the brain pushing downward forming the posterior pituitary (neurohypophysis, pars nervosa). Rathke's pouch eventually looses its connection with the pharynx. (Martin Heinrich Rathke 1973-1860, embryologist and anatomist) | ||
* '''rhombencephalon''' - (hindbrain), the most caudal portion of the 3 primary vesicle brain (week 4). (sc-'''R'''-M-P) | * '''rhombencephalon''' - (hindbrain), the most caudal portion of the 3 primary vesicle brain (week 4). (sc-'''R'''-M-P) | ||
* '''rhombic lip''' - metencephalon posterior part extending from the roof of the fourth ventricle to dorsal neuroepithelial cells that contributes to the cerebellum. | |||
* '''roofplate''' - early forming thin region of neural tube closest to the overlying ectoderm. | * '''roofplate''' - early forming thin region of neural tube closest to the overlying ectoderm. | ||
* '''spinal cord''' - caudal end of neural tube that does not contribute to brain. Note: the process of secondary neuralation contributes the caudal end of the spinal cord. | * '''spinal cord''' - caudal end of neural tube that does not contribute to brain. Note: the process of secondary neuralation contributes the caudal end of the spinal cord. |
Revision as of 17:07, 18 May 2017
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