rhombencephalon

 
Dictionary:

rhombencephalon

  (rŏm'bĕn-sĕf'ə-lŏn', -lən) pronunciation
n.

The hindbrain.

rhombencephalic rhom'ben·ce·phal'ic (-sə-făl'ĭk) adj.
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Medical Dictionary: rhom·ben·ceph·a·lon
(rŏm'bĕn-sĕf'ə-lŏn', -lən)
n.

The portion of the embryonic brain from which the metencephalon and myelencephalon develop, including the pons, cerebellum, and the medulla oblongata. Also called hindbrain.

 
Veterinary Dictionary: rhombencephalon

1. the hindbrain, including the medulla oblongata, pons and cerebellum.
2. the most caudal of the three primary vesicles formed in embryonic development of the brain, which later divides into the metencephalon and the myelencephalon.

 
WordNet: rhombencephalon
Note: click on a word meaning below to see its connections and related words.

The noun has one meaning:

Meaning #1: the posterior portion of the brain including cerebellum and pons and medulla oblongata
  Synonym: hindbrain


 
Wikipedia: rhombencephalon
Brain: Rhombencephalon
 GraySubject     = 187
EmbryonicBrain.svg
Diagram depicting the main subdivisions of the embryonic vertebrate brain. These regions will later differentiate into forebrain, midbrain and hindbrain structures.
Gray682.png
Superficial dissection of brain-stem. Lateral view.
NeuroNames hier-531
MeSH Rhombencephalon
Dorlands/Elsevier r_12/12709581

The rhombencephalon (or hindbrain) is a developmental categorization of portions of the central nervous system in vertebrates.

The rhombencephalon can be subdivided in a variable number of transversal swellings called rhombomeres. In the human embryo we can distinguish eight rhombomeres, from caudal to rostral: Rh7-Rh1 and the isthmus (the most rostral rhombomere).

A rare disease of the rhomencephalon, "rhombencephalosynapsis" is characterized by a missing vermis resulting in a fused cerebellum. Patients generally present with cerebellar ataxia.

Myelencephalon

Rhombomeres Rh7-Rh4 form the myelencephalon.

The myelencephalon forms the medulla oblongata in the adult brain; it contains:

Metencephalon

Rhombomeres Rh3-Rh1 form the metencephalon.

The metencephalon is composed of the pons and the cerebellum; it contains:

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Copyrights:

Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2007. Published by Houghton Mifflin Company. All rights reserved.  Read more
Medical Dictionary. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company Read more
Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved.  Read more
WordNet. WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved.  Read more
Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Rhombencephalon" Read more

 

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