The Experts below are selected from a list of 27 Experts worldwide ranked by ideXlab platform
Jan Erik Hardebo - One of the best experts on this subject based on the ideXlab platform.
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the pathway of parasympathetic Nerve fibers to cerebral vessels from the otic ganglion in the rat
1991Co-Authors: Norihiro Suzuki, Jan Erik HardeboAbstract:It has previously been shown that the otic ganglion contributes to the innervation of pial arteries in the rat with parasympathetic fibers, but the exact pathway from the ganglion to the vessels has been unknown. Further, the precise course of the lesser superficial Petrosal Nerve in the rat has not been described. In this research we show, by combining retrograde neuronal tracer technique and immunohistochemical demonstration of transmitters, that the fibers leave the ganglion in the lesser superficial Petrosal Nerve, running on the anterior and medial inner surface of the tympanic bulla to reach the greater superficial Petrosal Nerve, and deviate via the Deep Petrosal Nerve to the wall of the internal carotid artery. Various other Nerves were excluded as possible pathways.
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anatomical basis for a parasympathetic and sensory innervation of the intracranial segment of the internal carotid artery in man possible implication for vascular headache
1991Co-Authors: Norihiro Suzuki, Jan Erik HardeboAbstract:Abstract Two ganglionic cell groups, located close together and called the internal carotid ganglion, not described before in man, were demonstrated extradurally on the ventrolateral surface of the human internal carotid artery (ICA), where the greater superficial Petrosal Nerve is joined by the (greater) Deep Petrosal Nerve to form the vidian Nerve. The two ganglionic cell groups have fiber connections to the ICA, and consist of 50–70 cells each. By immunohistochemistry the majority of cells in one of the groups were shown to contain vasoactive intestinal polypeptide (VIP) and choline acetyltransferase (ChAT) indicating a parasympathetic function, whereas most cells in the other group contained substance P (SP) and possibly calcitonin gene-related peptide (CGRP), transmitters in pain fibers. Lateral to the intracavernous segment of ICA 10–150 scattered or aggregated VIP- and ChAT-positive cells were found, with fiber connections to the ophthalmic Nerve, the ICA, the abducent Nerve and the sphenopalatine ganglion. These cells may represent aberrant parasympathetic (sphenopalatine) ganglia, here referred to as cavernous ganglion. By radioimmunoassay substantial amounts of VIP, SP and CGRP were measured in both the extradural and the intracavernous segment of the ICA. Thus, the intracranial segment of the ICA is most likely innervated by parasympathetic and pain fibers from the internal carotid ganglion, sensory fibers from the ophthalmic division of the trigeminal ganglion, and parasympathetic fibers from the sphenopalatine and/or cavernous ganglion. Clinical implications for the activation of these Nerves to cause pain, dilatation and edema in this segment of the ICA during attacks of cluster headache and painful ophthalmoplegic syndromes are discussed.
Norihiro Suzuki - One of the best experts on this subject based on the ideXlab platform.
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the pathway of parasympathetic Nerve fibers to cerebral vessels from the otic ganglion in the rat
1991Co-Authors: Norihiro Suzuki, Jan Erik HardeboAbstract:It has previously been shown that the otic ganglion contributes to the innervation of pial arteries in the rat with parasympathetic fibers, but the exact pathway from the ganglion to the vessels has been unknown. Further, the precise course of the lesser superficial Petrosal Nerve in the rat has not been described. In this research we show, by combining retrograde neuronal tracer technique and immunohistochemical demonstration of transmitters, that the fibers leave the ganglion in the lesser superficial Petrosal Nerve, running on the anterior and medial inner surface of the tympanic bulla to reach the greater superficial Petrosal Nerve, and deviate via the Deep Petrosal Nerve to the wall of the internal carotid artery. Various other Nerves were excluded as possible pathways.
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anatomical basis for a parasympathetic and sensory innervation of the intracranial segment of the internal carotid artery in man possible implication for vascular headache
1991Co-Authors: Norihiro Suzuki, Jan Erik HardeboAbstract:Abstract Two ganglionic cell groups, located close together and called the internal carotid ganglion, not described before in man, were demonstrated extradurally on the ventrolateral surface of the human internal carotid artery (ICA), where the greater superficial Petrosal Nerve is joined by the (greater) Deep Petrosal Nerve to form the vidian Nerve. The two ganglionic cell groups have fiber connections to the ICA, and consist of 50–70 cells each. By immunohistochemistry the majority of cells in one of the groups were shown to contain vasoactive intestinal polypeptide (VIP) and choline acetyltransferase (ChAT) indicating a parasympathetic function, whereas most cells in the other group contained substance P (SP) and possibly calcitonin gene-related peptide (CGRP), transmitters in pain fibers. Lateral to the intracavernous segment of ICA 10–150 scattered or aggregated VIP- and ChAT-positive cells were found, with fiber connections to the ophthalmic Nerve, the ICA, the abducent Nerve and the sphenopalatine ganglion. These cells may represent aberrant parasympathetic (sphenopalatine) ganglia, here referred to as cavernous ganglion. By radioimmunoassay substantial amounts of VIP, SP and CGRP were measured in both the extradural and the intracavernous segment of the ICA. Thus, the intracranial segment of the ICA is most likely innervated by parasympathetic and pain fibers from the internal carotid ganglion, sensory fibers from the ophthalmic division of the trigeminal ganglion, and parasympathetic fibers from the sphenopalatine and/or cavernous ganglion. Clinical implications for the activation of these Nerves to cause pain, dilatation and edema in this segment of the ICA during attacks of cluster headache and painful ophthalmoplegic syndromes are discussed.
Mark Dalvin - One of the best experts on this subject based on the ideXlab platform.
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anatomy head and neck Deep Petrosal Nerve
2018Co-Authors: Madeline M Goosmann, Mark DalvinAbstract:The Deep Petrosal Nerve is a branch from the internal carotid plexus. The plexus is located on the lateral side of the internal carotid as it courses superiorly. The Deep Petrosal enters the skull through the carotid canal with the internal carotid artery. Without passing completely through the carotid canal, the Deep Petrosal travels perpendicular to the canal in another bony canal called foramen lacerum. The foramen lacerum is closed with cartilaginous substance superficially. The location of this foramen is between the body of sphenoid where the greater wing of the sphenoid and pterygoid plate meets anteriorly, petrous temporal bone laterally, and basilar occipital bone medially. In foramen lacerum, the Deep Petrosal Nerve joins with the greater Petrosal Nerve to form the vidian Nerve also called the Nerve of the pterygoid canal. The vidian Nerve carries parasympathetic and sympathetic fibers through the pterygoid canal to the pterygopalatine ganglion, otherwise known as the sphenopalatine ganglion. Parasympathetic fibers synapse in the pterygopalatine ganglion, whereas sympathetic fibers pass through without synapsing. The fibers carried by the Deep Petrosal Nerve originated in the intermediate gray horn of the spinal cord around the level of T1, traveled superiorly through the sympathetic chain, and synapsed in the superior cervical ganglion located around the level of C2-C3. Because the sympathetic fibers have already synapsed, they do not synapse again in the pterygopalatine ganglion. The sympathetic fibers continue after the pterygopalatine ganglion to run along the zygomatic Nerve to blood vessels and secretomotor elements in the lacrimal gland, nose, and oral cavity.
Madeline M Goosmann - One of the best experts on this subject based on the ideXlab platform.
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anatomy head and neck Deep Petrosal Nerve
2018Co-Authors: Madeline M Goosmann, Mark DalvinAbstract:The Deep Petrosal Nerve is a branch from the internal carotid plexus. The plexus is located on the lateral side of the internal carotid as it courses superiorly. The Deep Petrosal enters the skull through the carotid canal with the internal carotid artery. Without passing completely through the carotid canal, the Deep Petrosal travels perpendicular to the canal in another bony canal called foramen lacerum. The foramen lacerum is closed with cartilaginous substance superficially. The location of this foramen is between the body of sphenoid where the greater wing of the sphenoid and pterygoid plate meets anteriorly, petrous temporal bone laterally, and basilar occipital bone medially. In foramen lacerum, the Deep Petrosal Nerve joins with the greater Petrosal Nerve to form the vidian Nerve also called the Nerve of the pterygoid canal. The vidian Nerve carries parasympathetic and sympathetic fibers through the pterygoid canal to the pterygopalatine ganglion, otherwise known as the sphenopalatine ganglion. Parasympathetic fibers synapse in the pterygopalatine ganglion, whereas sympathetic fibers pass through without synapsing. The fibers carried by the Deep Petrosal Nerve originated in the intermediate gray horn of the spinal cord around the level of T1, traveled superiorly through the sympathetic chain, and synapsed in the superior cervical ganglion located around the level of C2-C3. Because the sympathetic fibers have already synapsed, they do not synapse again in the pterygopalatine ganglion. The sympathetic fibers continue after the pterygopalatine ganglion to run along the zygomatic Nerve to blood vessels and secretomotor elements in the lacrimal gland, nose, and oral cavity.
Bruno Bordoni - One of the best experts on this subject based on the ideXlab platform.
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anatomy head and neck greater Petrosal Nerve
2020Co-Authors: Eric Nturibi, Bruno BordoniAbstract:The greater Petrosal Nerve or superficial Petrosal Nerve is a branch of the nervus intermedius (Nerve of Wrisberg) that carries parasympathetic, taste, and sensory fibers of the facial cranial Nerve (CN VII). The preganglionic parasympathetic fibers develop from the superior salivatory nucleus of the tractus solitarius in the pontine tegmentum and progress in the nervus intermedius before joining the facial Nerve proper. These fibers transverse the geniculate ganglion without synapsing and exit the ganglion anteriorly as the greater Petrosal Nerve. The Nerve proceeds anteromedially and exits the superior surface of the temporal bone through the hiatus of the greater Petrosal Nerve (facial hiatus/hiatus fallopii) and into the middle temporal fossa. While in the facial hiatus, this Nerve travels alongside the middle meningeal artery. The greater Petrosal Nerve crosses the floor of the middle temporal fossa, medially to the lesser Petrosal Nerve and laterally to the internal carotid artery, anteromedially and slightly inferiorly passing beneath the Gasserian ganglion in Meckel’s cave and onwards towards the foramen lacerum, and the pterygoid (vidian) canal. This course has led some authors to divide the Nerve into four segments: the intraPetrosal segment running from the geniculate ganglion to the facial hiatus; the supraPetrosal segment running from the hiatus to the foramen lacerum; the segment of the foramen lacerum; and the segment of the pterygoid canal.In the proximal region of the pterygoid canal, the greater Petrosal Nerve is joined by the Deep Petrosal Nerve, forming the Nerve of the pterygoid canal - also called the Vidian Nerve. At this juncture, the Vidian Nerve carries preganglionic, sensory and taste fibers from the greater Petrosal, and postganglionic sympathetic fibers from the internal carotid plexus via the Deep Petrosal Nerve. The Vidian Nerve continues anteriorly within the pterygoid canal to the pterygopalatine fossa. The sympathetic fibers from the Deep Petrosal Nerve cross the pterygopalatine fossa without synapsing and provide all branches of the maxillary division of the trigeminal Nerve (V2) with sympathetic innervation. The parasympathetic fibers synapse at the pterygopalatine ganglion (sphenopalatine ganglion). Postganglionic parasympathetic fibers proceed to provide secretory and vasomotor innervation to the lacrimal, nasal, and palatine glands.
