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Ganglion Anatomy

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21. Comparative Anatomy of Gastrin-releasing Peptide Pathways in the Trigeminal Sensory System of Mouse and the Asian House Musk Shrew Suncus murinus (PubMed)

Comparative Anatomy of Gastrin-releasing Peptide Pathways in the Trigeminal Sensory System of Mouse and the Asian House Musk Shrew Suncus murinus Gastrin-releasing peptide (GRP) has recently been identified as an itch-signaling molecule in the primary afferents and spinal cord of rodents. However, little information exists on the expression and localization of GRP in the trigeminal somatosensory system other than in rats. We examined the generality of the trigeminal GRP system in mammals using (...) two distinct species, suncus as a model of specialized placental mammals known to have a well-developed trigeminal sensory system and mice as a representative small laboratory animal. We first analyzed the gross morphology of the trigeminal somatosensory system in suncus to provide a brainstem atlas on which to map GRP distribution. Immunohistochemical analyses showed that 8% of trigeminal ganglion neurons in suncus and 6% in mice expressed GRP. Expression was restricted to cells with smaller

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2016 Acta histochemica et cytochemica

22. The anatomy of the gasserian ganglion and the distribution of pain in relation to injections and operations for trigeminal neuralgia. (PubMed)

The anatomy of the gasserian ganglion and the distribution of pain in relation to injections and operations for trigeminal neuralgia. 5849103 1966 02 20 2013 11 21 0035-8843 37 6 1965 Dec Annals of the Royal College of Surgeons of England Ann R Coll Surg Engl The anatomy of the gasserian ganglion and the distribution of pain in relation to injections and operations for trigeminal neuralgia. 346-73 Henderson W R WR eng Comparative Study Journal Article England Ann R Coll Surg Engl 7506860 0035 (...) -8843 3K9958V90M Ethanol IM Ethanol therapeutic use Humans Injections Pain physiopathology Trigeminal Nerve anatomy & histology Trigeminal Neuralgia drug therapy physiopathology surgery 1965 12 1 1965 12 1 0 1 1965 12 1 0 0 ppublish 5849103 PMC2311910

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1965 Annals of the Royal College of Surgeons of England

23. Notes on the comparative anatomy of the ganglion cells associated with the vertebrate inner ear sensory areas (PubMed)

Notes on the comparative anatomy of the ganglion cells associated with the vertebrate inner ear sensory areas 17104756 2007 07 27 2008 11 20 0021-8782 73 Pt 2 1939 Jan Journal of anatomy J. Anat. Notes on the comparative anatomy of the ganglion cells associated with the vertebrate inner ear sensory areas. 263-88 Weston J K JK Anatomical Institute of the University of Groningen, Holland. eng Journal Article England J Anat 0137162 0021-8782 1939 1 1 0 0 1939 1 1 0 1 1939 1 1 0 0 ppublish 17104756

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1939 Journal of anatomy

24. Dorsal Root Ganglion Stimulation for Hand and Upper Limb Pain

Dorsal Root Ganglion Stimulation for Hand and Upper Limb Pain Dorsal Root Ganglion Stimulation for Hand and Upper Limb Pain - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Dorsal Root Ganglion Stimulation (...) with chronic hand or upper limb pain. Condition or disease Dorsal Root Ganglion Stimulation Pain in Limb, Hand, Foot, Fingers and Toes Causalgia of Upper Limb Detailed Description: Dorsal Root Ganglion (DRG) stimulation is a form of Spinal Cord Stimulation (SCS), which has been available and used for the treatment of chronic pain in Europe since late 2011. Clinical practice and pre/post market studies have shown that stimulation of the DRG can significantly reduce chronic intractable pain of various

2015 Clinical Trials

25. Technical and surgical aspects of the sphenopalatine ganglion (SPG) microstimulator insertion procedure. (PubMed)

Technical and surgical aspects of the sphenopalatine ganglion (SPG) microstimulator insertion procedure. Cluster headache (CH) is a debilitating, severe form of headache. A novel non-systemic therapy has been developed that produces therapeutic electrical stimulation to the sphenopalatine ganglion (SPG). A transoral surgical technique for inserting the Pulsante SPG Microstimulator into the pterygopalatine fossa (PPF) is presented herein. Technical aspects include detailed descriptions (...) of the preoperative planning using computed tomography or cone beam computed tomography scans for presurgical digital microstimulator insertion into the patient-specific anatomy and intraoperative verification of microstimulator placement. Surgical aspects include techniques to insert the microstimulator into the proper midface location atraumatically. During the Pathway CH-1 and Pathway R-1 studies, 99 CH patients received an SPG microstimulator. Ninety-six had a microstimulator placed within the PPF during

2015 International Journal of Oral and Maxillofacial Surgery

26. Attenuated infrared neuron stimulation response in cochlea of deaf animals may associate with the degeneration of spiral ganglion neurons (PubMed)

Attenuated infrared neuron stimulation response in cochlea of deaf animals may associate with the degeneration of spiral ganglion neurons We hypothesize that degenerated spiral ganglion neurons (SGNs) in guinea pigs reduces auditory brainstem responses evoked by pulsed infrared stimulation.Pulsed infrared laser excitation can directly evoke physiological responses in neuronal and other excitable cells in vivo and in vitro. Laser pulses could benefit patients with cochlear implants to stimulate (...) the auditory system.Pulsed infrared lasers were used to study evoked optical auditory brainstem responses (oABRs) in normal hearing and deafened animals. Aslo, the morphology and anatomy of SGNs in normal hearing and deafened guinea pigs were compared.By recording oABRs evoked by varying infrared laser pulse durations, it is suggested that degeneration of SGNs in deafened guinea pigs was associated with an elevated oABR threshold and with lower amplitudes. Moreover, oABR threshold decreased while

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2015 Biomedical optics express

27. Imaging Light Responses of Foveal Ganglion Cells in the Living Macaque Eye (PubMed)

Imaging Light Responses of Foveal Ganglion Cells in the Living Macaque Eye The fovea dominates primate vision, and its anatomy and perceptual abilities are well studied, but its physiology has been little explored because of limitations of current physiological methods. In this study, we adapted a novel in vivo imaging method, originally developed in mouse retina, to explore foveal physiology in the macaque, which permits the repeated imaging of the functional response of many retinal ganglion

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2014 The Journal of Neuroscience

28. Fluoroscopic stellate ganglion block for postmastectomy pain: a comparison of the classic anterior approach and the oblique approach (PubMed)

Fluoroscopic stellate ganglion block for postmastectomy pain: a comparison of the classic anterior approach and the oblique approach Stellate ganglion block is usually performed with the classic anterior paratracheal approach. The anatomy of the stellate ganglion being in close proximity to various critical structures renders a number of complications, which are potentially associated with its blockade. The aim of this study was to assess the analgesic efficacy and safety of a new approach (...) of the stellate ganglion block using an oblique fluoroscopic view.Fifty patients with postmastectomy pain syndrome were randomly allocated into 1 of 2 groups: the anterior paratracheal stellate block group and the oblique fluoroscopic stellate block group. Four blocks were performed for each patient using the same approach each time. The results were evaluated in terms of pain intensity as assessed by the visual analog scale score, morphine consumption, and allodynia surface area (in cm). Patient satisfaction

2011 EvidenceUpdates

29. Ganglion Cyst (Diagnosis)

Ganglion Cyst (Diagnosis) Ganglion Cyst: Background, Anatomy, Pathophysiology Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTI0MzQ1NC1vdmVydmlldw== processing > Ganglion Cyst Updated: Aug 27, 2018 Author: Renee (...) necessary, and current evidence suggests that arthroscopic ganglion excision is a practical and successful means of dorsal ganglion cyst removal. [ , , , ] Pharmacologic agents are under constant investigation in the medical arena. Potential advances in sclerosing agents specific to the treatment of ganglion cysts may lead to a definitive medical treatment of ganglions, which would avoid surgery. Next: Anatomy Dorsal ganglia most often affect the scapholunate joint, and the scaphoid interosseus ligament

2014 eMedicine Surgery

30. Image-guided Stellate Ganglion Blocks

blocks have the advantages of increased safety and accuracy compared with blind injections. The needle can be accurately placed near the stellate ganglion, and, as a result, a safer and smaller amount of local anesthetic can be used, reducing the risk of adverse effects. [ ] Anatomy The cervical sympathetic chain is composed of the superior, middle, and inferior cervical ganglia. In approximately 80% of the population, the inferior cervical ganglion fuses with the first thoracic ganglion, forming (...) the cervicothoracic ganglion also known as the stellate ganglion. [ , ] Understanding the surrounding anatomy of the stellate ganglion is critical for an effective block and to avoid serious and even life-threatening complications. The stellate ganglion lies anterolateral to the C7 vertebral body. [ ] Structures lying anterior to the ganglion include skin, subcutaneous tissue, platysma, investing cervical fascia, sternocleidomastoid muscle, and the carotid sheath (containing the internal jugular vein laterally

2014 eMedicine Radiology

31. Ganglion Cyst (Overview)

Ganglion Cyst (Overview) Ganglion Cyst: Background, Anatomy, Pathophysiology Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvMTI0MzQ1NC1vdmVydmlldw== processing > Ganglion Cyst Updated: Aug 27, 2018 Author: Renee (...) necessary, and current evidence suggests that arthroscopic ganglion excision is a practical and successful means of dorsal ganglion cyst removal. [ , , , ] Pharmacologic agents are under constant investigation in the medical arena. Potential advances in sclerosing agents specific to the treatment of ganglion cysts may lead to a definitive medical treatment of ganglions, which would avoid surgery. Next: Anatomy Dorsal ganglia most often affect the scapholunate joint, and the scaphoid interosseus ligament

2014 eMedicine Surgery

32. Verification of the anatomy and newly discovered histology of the G-spot complex. (PubMed)

vein-like vessels and smaller feeding arteries. Circular and longitudinal muscles covered the G-complex.The anatomy of the G-spot complex was confirmed. The histology of the G-spot presents as neurovascular tissues with a nerve ganglion. H&E staining is sufficient for the identification of the G-spot complex.© 2014 Royal College of Obstetricians and Gynaecologists. (...) Verification of the anatomy and newly discovered histology of the G-spot complex. To expand the anatomical investigations of the G-spot and to assess the G-spot's characteristic histological and immunohistochemical features.An observational study.International multicentre.Eight consecutive fresh human female cadavers.Anterior vaginal wall dissections were executed and G-spot microdissections were performed. All specimens were stained with haematoxylin and eosin (H&E). The tissues of two women

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2014 BJOG

33. Skull Base, Anatomy

Skull Base, Anatomy Skull Base Anatomy: Overview, Anterior Skull Base, Middle Skull Base Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvODgyNjI3LW92ZXJ2aWV3 processing > Skull Base Anatomy Updated: May 21, 2013 (...) Author: Arjun S Joshi, MD; Chief Editor: Arlen D Meyers, MD, MBA Share Email Print Feedback Close Sections Sections Skull Base Anatomy Overview Overview The forms the floor of the cranial cavity and separates the brain from other facial structures. This anatomic region is complex and poses surgical challenges for otolaryngologists and neurosurgeons alike. Working knowledge of the normal and variant anatomy of the is essential for effective surgical treatment of disease in this area. The 5 bones

2014 eMedicine Surgery

34. Nose Anatomy

), which comes from the carotid plexus to form the vidian nerve in the vidian canal. The vidian nerve travels through the pterygopalatine ganglion (with only the parasympathetic nerves forming synapses here) to the lacrimal gland and glands of the nose and palate via the maxillary division of the trigeminal nerve. Previous Next: Bony Anatomy Superiorly, the paired nasal bones are attached to the frontal bone (see the images below). Superolaterally, they are connected to the lacrimal bones (...) Nose Anatomy Nasal Anatomy: Embryology, Skin and Soft Tissues, Blood Supply and Lymphatics Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvODM1MTM0LW92ZXJ2aWV3 processing > Nasal Anatomy Updated: Jul 23, 2015

2014 eMedicine Surgery

35. Orbit Anatomy

Orbit Anatomy Orbit Anatomy: Osteology, Lacrimal System, Connective Tissue Planes Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvODM1MDIxLW92ZXJ2aWV3 processing > Orbit Anatomy Updated: Oct 29, 2013 Author: Guy J (...) Petruzzelli, MD, PhD, MBA, FACS; Chief Editor: Arlen D Meyers, MD, MBA Share Email Print Feedback Close Sections Sections Orbit Anatomy Osteology The , which protects, supports, and maximizes the function of the eye, is shaped like a quadrilateral pyramid, with its base in plane with the orbital rim. Seven bones conjoin to form the orbital structure, as shown in the image below. [ ] This image of the right orbit shows the 7 bones that contribute to its structure. The orbital process of the frontal bone

2014 eMedicine Surgery

36. Eyelid Anatomy

Eyelid Anatomy Eyelid Anatomy: Overview, Surface Anatomy, Skin and Subcutaneous Tissue Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvODM0OTMyLW92ZXJ2aWV3 processing > Eyelid Anatomy Updated: Jun 30, 2016 Author (...) : Bhupendra C K Patel, MD, FRCS; Chief Editor: Arlen D Meyers, MD, MBA Share Email Print Feedback Close Sections Sections Eyelid Anatomy Overview Overview The act to protect the anterior surface of the globe from local injury. Additionally, they aid in regulation of light reaching the eye; in tear film maintenance, by distributing the protective and optically important tear film over the cornea during blinking; and in tear flow, by their pumping action on the conjunctival sac and lacrimal sac. Structures

2014 eMedicine Surgery

37. Anatomy of the Vestibular System

Anatomy of the Vestibular System Vestibular System Anatomy: Overview, Membranous Labyrinth, Vestibular Sensory Epithelium Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvODgzOTU2LW92ZXJ2aWV3 processing > Vestibular (...) System Anatomy Updated: Jun 27, 2016 Author: Steve C Lee, MD, PhD; Chief Editor: Arlen D Meyers, MD, MBA Share Email Print Feedback Close Sections Sections Vestibular System Anatomy Overview Overview The peripheral is an integral part of the labyrinth that lies in the otic capsule in the petrous portion of the . The , which is the system of balance, consists of 5 distinct end organs: 3 semicircular canals that are sensitive to angular accelerations (head rotations) and 2 otolith organs

2014 eMedicine Surgery

38. Facial Nerve Anatomy

Facial Nerve Anatomy Facial Nerve Anatomy: Overview, Embryology of the Facial Nerve, Central Connections Edition: No Results No Results Please confirm that you would like to log out of Medscape. If you log out, you will be required to enter your username and password the next time you visit. https://profreg.medscape.com/px/getpracticeprofile.do?method=getProfessionalProfile&urlCache=aHR0cHM6Ly9lbWVkaWNpbmUubWVkc2NhcGUuY29tL2FydGljbGUvODM1Mjg2LW92ZXJ2aWV3 processing > Facial Nerve Anatomy (...) Updated: Jul 21, 2015 Author: Alpen A Patel, MD, FACS; Chief Editor: Thomas R Gest, PhD Share Email Print Feedback Close Sections Sections Facial Nerve Anatomy Overview Overview The , or cranial nerve (CN) VII, is the nerve of facial expression. The pathways of the facial nerve are variable, and knowledge of the key intratemporal and extratemporal landmarks is essential for accurate physical diagnosis and safe and effective surgical intervention in the head and neck. (See the image below

2014 eMedicine Surgery

39. Antonius Balthazar Raymundus Hirsch and the peregrination of "gasserian ganglion" (PubMed)

Anatomica In Quantum Ad Ganglion Sibi Proprium, Semilunare, Et Ad Originem Nervi Intercostalis Pertinet [An anatomical inquiry of the fifth pair of the nerves of the brain, so far as it relates to the ganglion unto itself, the semilunar, and to the source of the intercostal nerve]. Hirsch wrote his thesis as a paean to his ailing teacher, Johann Lorenz Gasser, but Gasser died before Hirsch was able to defend his thesis. Thereafter, Hirsch applied to teach anatomy at his alma mater, the University (...) Antonius Balthazar Raymundus Hirsch and the peregrination of "gasserian ganglion" The anatomical description of the fifth cranial nerve ganglion lacked detail before the work of Antonius Balthazar Raymundus Hirsch (1744-1778). Hirsch used new dissection techniques that resulted in the most meticulous report of the trigeminal ganglion (the gasserian ganglion) to have been reported. In 1765, the 21-year-old published these findings in a thesis, Paris Quinti Nervorum Encephali Disquisitio

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2013 Journal of Neurosurgery

40. Visual acuity in the archerfish: behavior, anatomy, and neurophysiology. (PubMed)

Visual acuity in the archerfish: behavior, anatomy, and neurophysiology. Archerfish are known for their remarkable behavior of shooting water jets at prey hanging on vegetation above water. Motivated by the fish's capacity to knock down small prey as high as two meters above water level, we studied the role of the retina in facilitating their excellent visual acuity. First, we show behaviorally that archerfish (Toxotes jaculatrix) can detect visual structures with a minimum angle of resolution (...) in the range of 0.075°-0.15°. Then, combining eye movement measurements with a ray tracing method, we show that the image of a target on the retina coincides with the area centralis at the ventro-temporal retina. Moving down to retinal neural circuits, we then examine the ratio by which retinal ganglion cells multiplex visual information from the photoreceptors. Measuring the anatomical densities of both cell types in the area centralis, we found photoreceptor spacing to be 5.8 μm, which supports a minimum

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2012 Journal of vision

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