diencephalon

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diencephalon

 [di″en-sef´ah-lon]
1. the posterior part of the prosencephalon, consisting of the hypothalamus, thalamus, metathalamus, and epithalamus; the subthalamus is often considered to be a distinct division. See also brainstem.
2. the posterior of the two brain vesicles formed by specialization of the prosencephalon in the developing embryo. See illustration.
Diencephalon. Posterior (dorsal) A and anterior (inferior) B views of the base of the brain, showing the diencephalon in relation to the mesencephalon (midbrain) and rhombencephalon (hindbrain). From Dorland's, 2000.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

di·en·ceph·a·lon

, pl.

di·en·ceph·a·la

(dī'en-sef'ă-lon, -sef'ă-lă), [TA]
The caudal part of the prosencephalon composed of the dorsal thalamus (or thalamus) epithalamus, subthalamus, and hypothalamus. the geniculate bodies, sometimes referred to as the metathalamus, are actualy part of the thalamus.
[G. dia, through, + enkephalos, brain]
Farlex Partner Medical Dictionary © Farlex 2012

diencephalon

(dī′ĕn-sĕf′ə-lŏn′, -lən)
n.
The posterior part of the forebrain that connects the midbrain with the cerebral hemispheres, encloses the third ventricle, and contains the thalamus and hypothalamus. Also called betweenbrain, interbrain.

di·en·ce·phal′ic (-sə-făl′ĭk) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

di·en·ceph·a·lon

, pl. diencephala (dī'en-sef'ă-lon, -lă) [TA]
That part of the prosencephalon composed of the epithalamus, dorsal thalamus, subthalamus, and hypothalamus.
[G. dia, through, + enkephalos, brain]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

diencephalon

The central, lower part of the brain that contains the BASAL GANGLIA, THE THALAMUS, the HYPOTHALAMUS, the PITUITARY gland.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

diencephalon

the part of the forebrain that contains the thalamus and hypothalamus and lies beneath the cerebral hemispheres.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Diencephalon

A part of the brain that binds the mesencephalon to the cerebral hemispheres. Considered by some as part of the brain stem.
Mentioned in: Korsakoff's Syndrome
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Tadpole diencephalon. The differential display strategy identified three candidate cDNA transcripts altered by OP, one transcript altered by UV-B, and two molecules that were unchanged based on a similar band intensity across all treatments (Table 1).
Tadpole diencephalon. Octylphenol (1 nM; group O[P.sub.1]) induced a 3-fold increase in the expression of NAP4 mRNA (Figure 3A), confirming the initial differential display results (Table 1).
As in the tadpole diencephalon (Figure 3B), BAI3 mRNA levels were increased by UV-B treatment in the metamorph hypothalamus (Figure 4C).
NAP4 expression was increased by 1 nM OP in the tadpole diencephalon, verifying the pattern observed in the initial differential display.
Although a decrease in expression of either BAI2 or BAI3 was not observed in the tadpole diencephalon, early exposure to OP did decrease BAI2 expression in the metamorph hypothalamus.