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...one between the prosencephalon and mesencephalon, and the one between the mesencephalon and rhombencephalon. The rhombencephalic neuromeres, however, remain clearl ...osencephalon is subdivided to form the telencephalon and diencephalon. the mesencephalon remains undivided, and the rhombencephalon divides to form the metencephalo

...he dorsal horns of the cord with the cerebellum and the dorsal part of the mesencephalon. Indeed, in cyclostomes there is no marked distinction in structure between ...ertain. The latter fibers pass forward and upward to enter the roof of the mesencephalon, forming the tractus bulbo-tectalis.

...cervical, the dorsal and the sacral. The cephalic is in the region of the mesencephalon and causes the anterior portion of the brain to be bent at an acute angle t ...quite apparent. The three primary divisions of the brain, prosencephalon, mesencephalon and rhombencephalon, have undergone the following differentiation in the 7.

...]] - neocortical fibres project to epithalamus, to dorsal thalamus, and to mesencephalon{{#pmid:2252222|PMID2252222}}

# [[C#cranial flexure|cranial flexure]] (cephalic)- pushes mesencephalon upwards

- prosencephalon, mesencephalon, metencephalon, myelencephalon, rhombencephalon - telencephalon, diencephalon, metencephalon, mesencephalon, myelencephalon

...the diencephalon. The second of the primary brain vesicles remains as the mesencephalon. The hind brain vesicle becomes divided into two portions, the metencephalo i, Cerebral hemisphere ; 2, optic evagination ; 3, diencephalon ; 4, mesencephalon ; 5, metencephalon ; 6, myelencephalon.

* 3 primary vesicles: '''prosencephalon''' (forebrain), '''mesencephalon''' (midbrain), '''rhombencephalon''' (hindbrain) * '''cephalic flexure''' - pushes mesencephalon upwards

* '''mes''' - mesencephalon

* '''mes''' - mesencephalon

Fig. 2 A transverse section through the mesencephalon of a 5-month-old fetus (no. 64) at the level of the main nucleus of the tro Fig. 3 A transverse section through the mesencephalon of a 5-month-old fetus (no. 64) at the level of the caudal division of the

* '''mes''' - mesencephalon

## Mesencephalon

* 3 primary vesicles: '''prosencephalon''' (forebrain), '''mesencephalon''' (midbrain), '''rhombencephalon''' (hindbrain) * '''mesencephalon'''

...s now cover two-thirds of the diencephalon. The inferior colliculus of the mesencephalon can be discerned (Bartelmez and Dekaban, 1962). Some optic fibers reach the

...human metencephalon, but not until the sixth Week ca11 it be found in the mesencephalon. By 7 weeks, the root and its nucleus have attained most of tlie characteri ...ans and extending rostrally as far as the isthmus between metencephalonand mesencephalon, but no farther. Several fibers descending in this tract emerge from the br

# [[Neural_-_Mesencephalon_Development|Mesencephalon]] (midbrain, mesomeres) # [[Neural_-_Mesencephalon_Development|Mesencephalon]]

...include the posterior commissure, just anterior to the dorsal limit of the mesencephalon. Anterior to this is the epiphyseal recess, and the dorso-mesial saccular o ===The Mesencephalon===

...ic sensory impulses and are all differentiated from the dorsal part of the mesencephalon and diencephalon. The centers now to be considered have to do with visceral ...nucleus habenulae and epiphysis. The fourth and fifth neuromeres form the mesencephalon. One of the earliest differentiations of form to appear in the brain segmen

...and midbrain one unit; though it is probable that a part, at least, of the mesencephalon was included with the cerebrum, since, upon removing the calvarium and dura ...it was possible to delimit the three early vesicles - the rhombencephalon, mesencephalon, and prosencephalon - the first point to determine was that of landmarks by