from The Century Dictionary.
- Situated in the midst of the encephalon, as the midbrain; of or pertaining to the mesencephalon: as, the mesencephalic segment of the brain.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Anat.) Of or pertaining to the mesencephalon or midbrain.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Of or pertaining to the
Sorry, no etymologies found.
After cryopreservation in liquid nitrogen for ninety days, fetal mesencephalic brain cells showed significantly decreased survival as compared to fresh cells.
Besides these scattered cells it contains three groups which constitute the nuclei of the oculomotor and trochlear nerves, and the nucleus of the mesencephalic root of the trigeminal nerve.
The neuroblasts of these laminæ are grouped in relation to the sides and floor of the cerebral aqueduct, and constitute the nuclei of the oculomotor and trochlear nerves, and of the mesencephalic root of the trigeminal nerve.
The fibers from the superior nucleus constitute the mesencephalic root: they descend through the mid-brain, and, entering the pons, join with the fibers from the lower nucleus, and the motor root, thus formed, passes forward through the pons to its point of emergence.
The mesencephalic root arises from the gray substance of the floor of the cerebral aqueduct, joins the motor root and probably conveys fibers of muscle sense from the temporal, masseter and pterygoid muscles.
The mesencephalic root (descending root of the trigeminal) arises from unipolar cells arranged in scattered groups in a column at the lateral edge of the central gray matter surrounding the upper end of the fourth ventricle and the cerebral aqueduct.
It is uncertain whether the mesencephalic root is motor or sensory.
Aside from the fibers of the fornix which pass through the mammillary body to decussate and descend (as the mammillo-mesencephalic fasciculus), many fibers are said to pass into the bundle of Vicq dAzyr, and one bundle of fibers is said to pass from the fornix to the tuber cinereum.
It is not altogether clear whether the mesencephalic root is motor or sensory.
In addition, neurons in the mesencephalic reticular formation (MRF) were found to be involved in the control of vergence