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Definition of mesencephalon in English: mesencephalonnoun ˌmɛsɛnˈsɛf(ə)lɒnˌmiːzɛnˈsɛf(ə)lɒnˌmɛsɛnˈkɛf(ə)lɒnˌmiːzɛnˈkɛf(ə)lɒn Anatomy another term for midbrain Example sentencesExamples - However, at later stages, the specification of the prosencephalon and the mesencephalon remains defective.
- Ectoderm from the mesencephalon and rhombomere specifically migrates to the mandibular arch primordium, and rhombomere infiltrates the hyoid arch.
- According to Panksepp, there are primal neural networks in the posterior thalamic, tectal and periaqueductal regions of the mesencephalon that constantly process emotional information.
- 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.
- The latter includes the diencephalon; mesencephalon, or midbrain; pons; and medulla oblongata.
- 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.
- 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.’
- The neural tube is broad and divides flaccidly into three parts: an anterior prosencephalon, a middle mesencephalon, and a posterior rhombencephalon.
Derivativesadjective Anatomy The principal mesencephalic projection to the striatum originates from the substantia nigra pars compacta. Example sentencesExamples - Two non-sensory control regions were examined, the optic tectum and the mesencephalic tegmentum.
- By contrast, reduced activation in the mesencephalic brainstem and the thalamus was noted to be exclusively associated with mental relaxation.
- The red nucleus has been cleaned so that its larger, spherical mesencephalic part can be distinguished from the more rostral, ovoid diencephalic part.
- The root fibers arising from the trochlear nuclei form a decussation dorsal to the mesencephalic aqueduct, and they are the only cranial nerves that cross completely and that leave the dorsal aspect of the brain stem.
OriginMid 19th century: from Greek mesos 'middle' + encephalon. Definition of mesencephalon in US English: mesencephalonnoun Anatomy another term for midbrain Example sentencesExamples - Ectoderm from the mesencephalon and rhombomere specifically migrates to the mandibular arch primordium, and rhombomere infiltrates the hyoid arch.
- The latter includes the diencephalon; mesencephalon, or midbrain; pons; and medulla oblongata.
- 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.
- 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.
- 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.’
- The neural tube is broad and divides flaccidly into three parts: an anterior prosencephalon, a middle mesencephalon, and a posterior rhombencephalon.
- According to Panksepp, there are primal neural networks in the posterior thalamic, tectal and periaqueductal regions of the mesencephalon that constantly process emotional information.
- However, at later stages, the specification of the prosencephalon and the mesencephalon remains defective.
OriginMid 19th century: from Greek mesos ‘middle’ + encephalon. |