Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The forebrain.
from The Century Dictionary.
- noun The fore-brain; the cerebral hemispheres, together with the callosum, striate bodies, and fornix. It may also include the rhinencephalon.
- noun All of the parts developed from the anterior of the three primary cerebral vesicles, including, in addition to those of , the thalamencephalon. Also called
procerebrum . - noun The second cranial segment, counting from before backward, of the four of which the head has been theoretically assumed to be composed. See cuts under
encephalon and Petromyzontidæ.
from the GNU version of the Collaborative International Dictionary of English.
- noun The anterior segment of the brain, including the cerebrum and olfactory lobes; the forebrain.
- noun The cerebrum.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun neuroanatomy
Forebrain .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube
Etymologies
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Examples
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Two smaller divisions of the prosencephalon are the diencephalon and telencephalon.
CreationWiki - Recent changes [en] Ashcraft 2010
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Two smaller divisions of the prosencephalon are the diencephalon and telencephalon.
CreationWiki - Recent changes [en] Ashcraft 2010
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All this may therefore be referred to as the prosencephalon {pros'en-sef'uh-lon; "forebrain" G).
The Human Brain Asimov, Isaac 1963
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These are marked off from each other by intervening constrictions, and are named the fore-brain or prosencephalon, the mid-brain or mesencephalon, and the hind-brain or rhombencephalonthe last being continuous with the medulla spinalis.
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The fore-brain or prosencephalon consists of: (1) the diencephalon, corresponding in a large measure to the third ventricle and the structures which bound it; and (2) the telencephalon, comprising the largest part of the brain, viz., the cerebral hemispheres; these hemispheres are intimately connected with each other across the middle line, and each contains a large cavity, named the lateral ventricle.
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In its early embryonic condition it consists of three hollow vesicles, termed the hind-brain or rhombencephalon, the mid-brain or mesencephalon, and the fore-brain or prosencephalon; and the parts derived from each of these can be recognized in the adult (Fig. 677).
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The cephalic end of the neural groove exhibits several dilatations, which, when the tube is closed, assume the form of three vesicles; these constitute the three primary cerebral vesicles, and correspond respectively to the future fore-brain (prosencephalon), mid-brain (mesencephalon), and hind-brain (rhombencephalon) (Fig. 18).
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The original fore-brain is often called the thalamencephalon, the hemisphere, the prosencephalon, the olfactory lobes, the rhinencephalon.
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_ -- About the middle of the first month of intra-uterine life the prosencephalon bends acutely forward over the end of the notochord and sends out from its base a series of processes, which ultimately blend to form the face (Fig. 231).
Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition. Alexander Miles 1893
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It refers to an incomplete or absent division of prosencephalon (forebrain) into the distinct cerebral hemispheres.
BioMed Central - Latest articles Ashish Gupta 2010
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