Alar plate

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Alar plate
Gray646.svg
Diagram to illustrate the alar and basal laminæ of brain vesicles.
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aged about four and a half weeks.
Details
Carnegie stage 13
Precursor Neural tube
Gives rise to Dorsal gray of the spinal cord, and develops into the sensory nuclei of cranial nerves V, VII, VIII, IX, and X. The inferior olivary nucleus, mesencephalic nucleus of V, and main sensory nucleus of V
Identifiers
Latin lamina dorsolateralis,
lamina alaris
TE plate_by_E5.14.1.0.1.0.4 E5.14.1.0.1.0.4
Anatomical terminology

The alar plate (or alar lamina) is a neural structure in the embryonic nervous system, part of the dorsal side of the neural tube, that involves the communication of general somatic and general visceral sensory impulses. The caudal part later becomes the sensory axon part of the spinal cord.

Contents

The alar plate specifically later on becomes the dorsal gray of the spinal cord, and also develops into the sensory nuclei of cranial nerves V, VII, VIII, IX, and X. The inferior olivary nucleus, mesencephalic nucleus of V, and main sensory nucleus of V are also developed from this plate. The cerebellum also develops from the alar plate, particularly from the rhombic lip. This is considered an exception to the general differentiation scheme from the alar plate, as the alar plate generally gives rise to sensory derivatives. [1] [2]

See also

References

  1. Siegel, Allan (2006). Essential Neuroscience . Baltimore, MD: Lippincott Williams & Wilkins. ISBN   0781750776.
  2. Purves, Dale; Augustine, George J.; Fitzpatrick, David, eds. (2018). Neuroscience (6 ed.). New York Oxford: Oxford University Press, Sinauer Associates is an imprint of Oxford Universitiy Press. p. A-11. ISBN   978-1-60535-380-7.