How To Use Encephalon In A Sentence
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The cerebral hemispheres are not convoluted, and, looked at from the dorsal aspect, do not hide the thalamencephalon and mid-brain.
Text Book of Biology, Part 1: Vertebrata
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The cerebrum is part of the forebrain, which is also made up of the diencephalon.
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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).
I. Embryology. 6. The Neural Groove and Tube
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The longitudinal part of this sulcus expands superiorly to form a slight depression which supports the pineal body, a cone-like structure which projects backward from the thalamencephalon and partly obscures the superior colliculi.
IX. Neurology. 4b. The Mid-brain or Mesencephalon
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Stimuli are thought to pass along the intercostal nerves to the posterior column of the spinal cord, to the mesencephalon, and finally to the hypothalamus, where the secretion of prolactin inhibitory factor is reduced.
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From the alar lamina of the diencephalon, the thalamus, metathalamus, and epithalamus are developed.
IX. Neurology. 2. Development of the Nervous System
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The GnRH forms not found in the POA are expressed in two other distinct cell groups, one located in the terminal nerve region, the other in the mesencephalon.
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The pons is developed from the ventro-lateral wall of the metencephalon by a process similar to that which has been described for the medulla oblongata.
IX. Neurology. 2. Development of the Nervous System
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Two smaller divisions of the prosencephalon are the diencephalon and telencephalon.
CreationWiki - Recent changes [en]
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For reasons of its own, evolution allowed mammalian energy to hold sway, and the recently developed human midbrain or mesencephalon, which had folded over the old diencephalon, could be accurately labeled a mammal brain.
La insistencia de Jürgen Fauth
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According to Panksepp, there are primal neural networks in the posterior thalamic, tectal and periaqueductal regions of the mesencephalon that constantly process emotional information.
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A broad layer of nerve-containing grey matter found bilaterally throughout the mesencephalon, or upper brain stem.
Alcohol and The Addictive Brain
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The mid-brain or mesencephalon (Fig. 681) is the short, constricted portion which connects the pons and cerebellum with the thalamencephalon and cerebral hemispheres.
IX. Neurology. 4b. The Mid-brain or Mesencephalon
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Developmentally, estrogens might be synthesized only locally in the telencephalon of male Zebra Finches to masculinize the neural circuits controlling song.
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However, at later stages, the specification of the prosencephalon and the mesencephalon remains defective.
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The parts of mid-brain (mesencephalon) will be easily recognised.
Text Book of Biology, Part 1: Vertebrata
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The hind-brain or rhombencephalon occupies the posterior fossa of the cranial cavity and lies below a fold of dura mater, the tentorium cerebelli.
IX. Neurology. 4a. The Hind-brain or Rhombencephalon
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Repertoire size can be predicted by variance in the sizes of several brain nuclei, which show significant covariation not only with each other but also with the size of the telencephalon or overall brain size.
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Continuing in the vocabulary vein, the ‘neuraxis’ is ‘the axial unpaired part of the central nervous system, composed of the spinal cord, rhombencephalon, mesencephalon, and diencephalon.’
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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).
IX. Neurology. 4. The Brain or Encephalon
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Not being accustomed to balking at obtaining a solution despite significant difficulties offered, I put my massive encephalon to this task.
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It consists of (a) the myelencephalon, comprising the medulla oblongata and the lower part of the fourth ventricle; (b) the metencephalon, consisting of the pons, cerebellum, and the intermediate part of the fourth ventricle; and (c) the isthmus rhombencephali, a constricted portion immediately adjoining the mid-brain and including the superior peduncles of the cerebellum, the anterior medullary velum, and the upper part of the fourth ventricle.
IX. Neurology. 4a. The Hind-brain or Rhombencephalon
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The mid-brain or mesencephalon (Fig. 681) is the short, constricted portion which connects the pons and cerebellum with the thalamencephalon and cerebral hemispheres.
IX. Neurology. 4b. The Mid-brain or Mesencephalon
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The neurohypophysis, or posterior pituitary, is derived from an evagination of the infundibular portion of the diencephalon of the brain.
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Developmentally, estrogens might be synthesized only locally in the telencephalon of male Zebra Finches to masculinize the neural circuits controlling song.
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The original fore-brain is often called the thalamencephalon, the hemisphere, the prosencephalon, the olfactory lobes, the rhinencephalon.
Text Book of Biology, Part 1: Vertebrata
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On the other hand it is correct that one is dealing with a protective function controlled from the diencephalon, which avoids exhaustion and produces the conditions for an undisturbed recovery.
Walter Hess - Nobel Lecture
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The neurohypophysis, or posterior pituitary, is derived from an evagination of the infundibular portion of the diencephalon of the brain.
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Neuronal circuitry for centrifugal modulation in visual information processing. Visual information is transmitted and processed from the retina to the telencephalon where visual perception results.
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The cerebral hemispheres (c.h.) are not convoluted, do not extend back to cover parts behind them, as they do in the rabbit, and are not connected above the roof of the thalamencephalon by a corpus callosum.
Text Book of Biology, Part 1: Vertebrata
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The rhinencephalon comprises the olfactory lobe, the uncus, the subcallosal and supracallosal gyri, the fascia dentata hippocampi, the septum pellucidum, the fornix, and the hippocampus.
IX. Neurology. 4c. The Fore-brain or Prosencephalon
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For probably there is not any tissue of the body, nor the functions of any of its parts, which are not influenced directly or indirectly by this unifying energy of the encephalon.
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The diencephalon comprises: (1) the thalamencephalon; (2) the pars mamillaris hypothalami; and (3) the posterior part of the third ventricle.
IX. Neurology. 4c. The Fore-brain or Prosencephalon
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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).
IX. Neurology. 4. The Brain or Encephalon
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Similarly, animals that occupy spatially complex environments such as coral reefs also tend to have larger telencephalons.
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The enlargement of CMS in the fetuses may be shown in physiologic enlargement of posterior fossa. ConclusionsCMS is a potential new marker for normal development of rhombencephalon.
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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.
IX. Neurology. 2. Development of the Nervous System
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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).
I. Embryology. 6. The Neural Groove and Tube
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The cerebellum (metencephalon) consists of a central mass, the vermis (v. cbm.), and it also has lateral lobes (l.l.), prolonged into flocculi (f. cbm.), which lastare - em-bedded in pits, [in] the periotic bone, and on that account render the extraction of the brain from the cranium far more difficult than it would otherwise be.
Text Book of Biology, Part 1: Vertebrata
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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).
I. Embryology. 6. The Neural Groove and Tube
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The anterior part of the fore-brain, including the rudiments of the cerebral hemispheres, is named the telencephalon, and its posterior portion is termed the diencephalon; both of these contribute to the formation of the third ventricle.
IX. Neurology. 2. Development of the Nervous System
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Developmentally considered, the fourth ventricle consists of three parts: a superior belonging to the isthmus rhombencephali, an intermediate, to the metencephalon, and an inferior, to the myelencephalon.
IX. Neurology. 4a. The Hind-brain or Rhombencephalon
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The latter includes the diencephalon; mesencephalon, or midbrain; pons; and medulla oblongata.
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In this way, for example, we can understand the experimental finding, that in many cases where the stimulus applied to the diencephalon causes defaecation, this is not brought about simply by peristalsis of the colon and rectum.
Walter Hess - Nobel Lecture
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For reasons of its own, evolution allowed mammalian energy to hold sway, and the recently developed human midbrain or mesencephalon, which had folded over the old diencephalon, could be accurately labeled a mammal brain.
La insistencia de Jürgen Fauth
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In medicine and anatomy, the use of the term to refer to the telencephalon.
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It refers to an incomplete or absent division of prosencephalon (forebrain) into the distinct cerebral hemispheres.
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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.
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[S.P.G.], stalk of the pineal gland. th., thalamencephalon.th. c., thalamencephalon.
Text Book of Biology, Part 1: Vertebrata
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Controls issue from the diencephalon which harness the functional capacities of individual organs in viable responses.
Walter Hess - Nobel Lecture
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One thing had nevertheless become clear, namely that the parts of the brain communicating directly with the spinal cord at the upper end - the medulla oblongata, and the segment lying directly beneath the cerebrum, the so-called diencephalon - exert a decisive influence on the vegetative controlling mechanisms.
Walter Hess - Nobel Lecture
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Brains were removed and dissected into telencephalon (excluding the olfactory bulbs), hypothalamus (excluding the pituitary), optic tectum, and brain stem (excluding the cerebellum).
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The telencephalon of living reptiles and birds is expanded laterally, so that it has a distinct heart-shape when viewed dorsally.
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Finally, we may note the pineal gland and the pituitary body, as remarkable appendages above and below the thalamencephalon.
Text Book of Biology, Part 1: Vertebrata
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The original fore-brain is often called the thalamencephalon, the hemisphere, the prosencephalon, the olfactory lobes, the rhinencephalon.
Text Book of Biology, Part 1: Vertebrata
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Functionally, the total behaviour of the animal illustrates the fact that, in the part of the diencephalon indicated, a meaningful association of physiological processes takes place, which is related on the one hand to the regulation of the internal organs, and on the other involves the functions directed outwards towards the environment.
Walter Hess - Nobel Lecture
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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).
IX. Neurology. 4. The Brain or Encephalon
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It has also been understood for some time that the functions of these and several other primary reflex centers are integrated in the mesencephalon, that is, the grey matter, grouped in several nuclei, which is located below the hemispheres of the cerebrum, in immediate proximity to the hypophysis, which exercises a regulating influence on a great many vegetative functions.
Nobel Prize in Physiology or Medicine 1949 - Presentation Speech
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The thalamencephalon comprises: (1) the thalamus; (2) the metathalamus or corpora geniculata; and (3) the epithalamus, consisting of the trigonum habenulæ, the pineal body, and the posterior commissure.
IX. Neurology. 4c. The Fore-brain or Prosencephalon
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A few fibers of the medullary stria are said to pass by the habenular nucleus to the roof of the mid-brain, especially the superior colliculus, while a few others come into relation with the posterior longitudinal bundle and association tracts of the mesencephalon.
IX. Neurology. 4e. Composition and Central Connections of the Spinal Nerves
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Eye development in zebrafish first becomes morphologically obvious at the 6 somite stage, the time at which the optic lobes evaginate from the diencephalon.
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The latter includes the diencephalon; mesencephalon, or midbrain; pons; and medulla oblongata.
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The fore-brain consists of a thalamencephalon (th.c. and 1), which is exposed in the dorsal view of the brain, and which has no middle commissure.
Text Book of Biology, Part 1: Vertebrata
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From previous anatomical data, we hypothesize that the level of such actions is suprametameric, with strong implication of the diencephalon and cerebral cortex.
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For example, development of the telencephalon can be divided into these stages: neurectoderm, neural plate, neural tube, forebrain vesicle, evaginated hemispheres, etc.
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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.
IX. Neurology. 2. Development of the Nervous System
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The rhinencephalon appears as a longitudinal elevation, with a corresponding internal furrow, on the under surface of the hemisphere close to the lamina terminalis; it is separated from the lateral surface of the hemisphere by a furrow, the external rhinal fissure, and is continuous behind with that part of the hemisphere, which will ultimately form the anterior end of the temporal lobe.
IX. Neurology. 2. Development of the Nervous System
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In the telencephalon, PRV-Ba-Gal and PRV-Ba labeled neurons were found in the amygdaloid nucleus.
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According to this view of how the diencephalon plays a decisive role in activity which progresses from the part to the whole, it will come as no surprise if still other observations could be made which lead in another direction.
Walter Hess - Nobel Lecture
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The thalamencephalon comprises: (1) the thalamus; (2) the metathalamus or corpora geniculata; and (3) the epithalamus, consisting of the trigonum habenulæ, the pineal body, and the posterior commissure.
IX. Neurology. 4c. The Fore-brain or Prosencephalon
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Does the encephalon fail when drummed-in ideas are put to the test of being examined?
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The internal capsule and corona radiata have been exposed by removal of the corpus callosum, caudate nucleus, and diencephalon.
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In the rostral diencephalons, labeled descending fibers appeared gathered in the medial part of the crus cerebri and scattered labeled descending fibers were observed ipsilaterally in the subthalmic nucleus, the zona incerta and adjacent thalamic nuclei.
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The latter includes the diencephalon; mesencephalon, or midbrain; pons; and medulla oblongata.
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Ectoderm from the mesencephalon and rhombomere specifically migrates to the mandibular arch primordium, and rhombomere infiltrates the hyoid arch.
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It is customary to divide the rest of the hind-brain into two parts, viz., an upper, called the metencephalon, and a lower, the myelencephalon.
IX. Neurology. 2. Development of the Nervous System
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If I had thought, by observing the effects of artificial electrical stimuli in small doses on some dozen or so experimental animals with altogether some hundred points of stimulation distributed over the diencephalon, to achieve in due course the looked-for elucidation, then the first result was a thorough disappointment.
Walter Hess - Nobel Lecture
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The latter includes the diencephalon; mesencephalon, or midbrain; pons; and medulla oblongata.
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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.
IX. Neurology. 4c. The Fore-brain or Prosencephalon
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All this may therefore be referred to as the prosencephalon {pros'en-sef'uh-lon; "forebrain" G).
The Human Brain
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It has been carpeted over by the cerebrum, but it is there, deep within the forebrain, and consists of the limbic lobe, the hypothalamus, and, perhaps, other organs of the diencephalon.
La insistencia de Jürgen Fauth
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The cerebellum is developed by a thickening of the roof, and the pons by a thickening in the floor and lateral walls of the metencephalon.
IX. Neurology. 2. Development of the Nervous System
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The neural tube is broad and divides flaccidly into three parts: an anterior prosencephalon, a middle mesencephalon, and a posterior rhombencephalon.
