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The mesencephalic duct, also known as the aqueduct of Sylvius or the cerebral aqueduct, contains cerebrospinal fluid (CSF), is within the mesencephalon (or midbrain) and connects the third ventricle in the diencephalon to the fourth ventricle, which is between the pons and cerebellum. Image File history File links Cn3nucleus. ...
The superior colliculus is part of the brain that sits below the thalamus and surrounds the pineal gland in the mesencephalon of vertebrate brains. ...
The oculomotor nerve () is the third of twelve paired cranial nerves. ...
Image File history File links Gray710. ...
In biological anatomy, the mesencephalon (or midbrain) is the middle of three vesicles that arise from the neural tube that forms the brain of developing animals. ...
Corpora quadrigemina (Latin: four twins) is the collective name given to both pairs of the inferior and superior colliculi. ...
Periaqueductal Gray (PAG; also called the central gray) is the midbrain grey matter that is located around the cerebral aqueduct within the midbrain. ...
The lateral sulcus (also called Sylvian fissure or lateral fissure) is one of the most prominent structures of the human brain. ...
The substantia nigra, (Latin for black substance, Soemering) or locus niger is a heterogeneous portion of the midbrain, separating the pes (foot) from the tegmentum (covering), and a major element of the basal ganglia system. ...
The red nucleus is a structure in the rostral midbrain involved in motor coordination. ...
The midbrain tegmentum is part of the midbrain extending from the substantia nigra to the cerebral aqueduct. ...
The oculomotor nerve () is the third of twelve paired cranial nerves. ...
This article needs to be wikified. ...
The medial lemniscus, also known as Reils band or Reils ribbon, is a pathway in the brainstem that carries sensory information from the gracile and cuneate nuclei to the thalamus. ...
The lateral lemniscus is a tract of axons in the brainstem that carries information about sound to the inferior colliculus of the midbrain. ...
The medial longitudinal fasciculus (MLF) is a group of axons on each side of the brainstem, that carry information about the direction that the eyes should move. ...
In general, a raphe (pronounced RAY-fee) is a seam. ...
In the human nervous system the temporopontine fibers are lateral to the cerebrospinal fibers; they originate in the temporal lobe and end in the nuclei pontis. ...
The medial lemniscus, also known as Reils band or Reils ribbon, is a pathway in the brainstem that carries sensory information from the gracile and cuneate nuclei to the thalamus. ...
The lentiform nucleus or lenticular nucleus describes the putamen and the globus pallidus within the basal ganglia. ...
Insula is the Latin word for island. It has other meanings: A Roman building with several stories. ...
The cerebrospinal fibers, derived from the cells of the motor area of the cerebral cortex, occupy the middle three-fifths of the base; they are continued partly to the nuclei of the motor cranial nerves, but mainly into the pyramids of the medulla oblongata. ...
The frontopontine fibers are situated in the medial fifth of the base of the cerebral peduncles; they arise from the cells of the frontal lobe and end in the nuclei of the pons. ...
Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ...
NeuroNames is a system of nomenclature for the brain and related structures. ...
Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ...
Cerebrospinal fluid (CSF), Liquor cerebrospinalis, is a clear bodily fluid that occupies the subarachnoid space in the brain (the space between the skull and the cerebral cortex—more specifically, between the arachnoid and pia layers of the meninges). ...
In biological anatomy, the mesencephalon (or midbrain) is the middle of three vesicles that arise from the neural tube that forms the brain of developing animals. ...
The third ventricle is one of the four connected fluid-filled cavities within the human brain. ...
The diencephalon is the region of the brain that includes the epithalamus, thalamus, and hypothalamus. ...
The fourth ventricle is one of the four connected fluid-filled cavities within the human brain. ...
Position of the pons in the human brain The pons (sometimes pons Varolii after Costanzo Varolio) is a knob on the brain stem. ...
Figure 1a: A human brain, with the cerebellum in purple. ...
A blockage in this duct is a cause of hydrocephalus.
See also
Human brain image constructed from MRI data // Brain (neural tube) Brainstem (rhombencephalon),(mesencephalon) Rhombencephalon (hindbrain) Metencephalon pons fourth ventricle cerebellum cerebellar vermis cerebellar hemispheres anterior lobe posterior lobe flocculonodular lobe cerebellar nuclei fastigial nucleus globose nucleus emboliform nucleus dentate nucleus Myelencephalon medulla oblongata medullary pyramids Mesencephalon (midbrain) tectum inferior colliculi...
Additional images Median sagittal section of brain. Image File history File links Gray720. ...
| Scheme showing relations of the ventricles to the surface of the brain. Image File history File links Gray734. ...
| Drawing of a cast of the ventricular cavities, viewed from the side. Image File history File links Gray736. ...
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| Mesencephalon (midbrain) | | cerebral peduncle: midbrain tegmentum (periaqueductal gray, ventral tegmentum, nucleus raphe dorsalis), pretectum, substantia nigra, red nucleus, pedunculopontine nucleus, medial longitudinal fasciculus, medial lemniscus, rubrospinal tract, lateral lemniscus In biological anatomy, the mesencephalon (or midbrain) is the middle of three vesicles that arise from the neural tube that forms the brain of developing animals. ...
The cerebral peduncle, by most classifications, is everything in the mesencephalon except the tectum. ...
The midbrain tegmentum is part of the midbrain extending from the substantia nigra to the cerebral aqueduct. ...
Periaqueductal Gray (PAG; also called the central gray) is the midbrain grey matter that is located around the cerebral aqueduct within the midbrain. ...
Grays FIG. 712– Transverse section of mid-brain at level of superior colliculi. ...
The nucleus raphe dorsalis consists of rostral and caudal subdivisions. ...
Pretectum is a structure located in the forebrain. ...
The substantia nigra, (Latin for black substance, Soemering) or locus niger is a heterogeneous portion of the midbrain, separating the pes (foot) from the tegmentum (covering), and a major element of the basal ganglia system. ...
The red nucleus is a structure in the rostral midbrain involved in motor coordination. ...
The pedunculopontine nucleus (PPN) is located in the brainstem, caudal to the substantia nigra and adjacent to the superior cerebellar peduncle. ...
The medial longitudinal fasciculus (MLF) is a group of axons on each side of the brainstem, that carry information about the direction that the eyes should move. ...
The medial lemniscus, also known as Reils band or Reils ribbon, is a pathway in the brainstem that carries sensory information from the gracile and cuneate nuclei to the thalamus. ...
The rubrospinal tract is part of the indirect extra-pyramidal tract and is responsible for large muscle movement such as the arms and the legs. ...
The lateral lemniscus is a tract of axons in the brainstem that carries information about sound to the inferior colliculus of the midbrain. ...
tectum: corpora quadrigemina, inferior colliculi, superior colliculi The tectum is the dorsal part of the midbrain, derived in embryonic development from the alar plate of the neural tube. ...
Corpora quadrigemina (Latin: four twins) is the collective name given to both pairs of the inferior and superior colliculi. ...
The paired inferior colliculi together with the superior colliculi form the eminences of the corpora quadrigemina. ...
The superior colliculus is part of the brain that sits below the thalamus and surrounds the pineal gland in the mesencephalon of vertebrate brains. ...
cerebral aqueduct: oculomotor nucleus, trochlear nucleus, Edinger-Westphal nucleus The fibers of the oculomotor nerve arise from a nucleus in the midbrain, which lies in the gray substance of the floor of the cerebral aqueduct and extends in front of the aqueduct for a short distance into the floor of the third ventricle. ...
The nucleus of the trochlear nerve is located in the midbrain, at the level of the inferior colliculus. ...
The Edinger-Westphal nucleus is the accessory parasympathetic nucleus of the oculomotor nerve, supplying the constricting muscles of the iris. ...
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