Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Sympathetic Pathways: Sympathetic Chain Ganglia01:20

Sympathetic Pathways: Sympathetic Chain Ganglia

The sympathetic chain ganglia, also known as the sympathetic trunk ganglia or paravertebral ganglia, are a series of ganglia located bilaterally on either side of the spinal column. These ganglia serve as relay stations for the sympathetic nervous system. Preganglionic neurons originating in the spinal cord project their axons to the sympathetic chain ganglia. Within the ganglia, these preganglionic fibers synapse with postganglionic neurons.The postganglionic neurons of the sympathetic trunk...
The Spinal Cord01:54

The Spinal Cord

The spinal cord is the body’s major nerve tract of the central nervous system, communicating afferent sensory information from the periphery to the brain and efferent motor information from the brain to the body. The human spinal cord extends from the hole at the base of the skull, or foramen magnum, to the level of the first or second lumbar vertebra.
Spinal Cord: Information Processing01:10

Spinal Cord: Information Processing

The spinal cord is an integral hub for motor and sensory information that enables the brain to communicate with the peripheral nervous system (PNS). This communication consists of relaying sensory data and transmission of motor commands.
Sensory Information Processing
Sensory information processing begins at the sensory receptors located in the skin and other tissues, which detect somatic sensory stimuli such as touch, temperature, or pain. These receptors function as catalysts, initiating...
Spinal Cord: Gross Anatomy01:15

Spinal Cord: Gross Anatomy

The spinal cord resides within the protective confines of the vertebral column. It is the main pathway for information traveling between the brain and the body. It plays a fundamental role in nearly all bodily functions, from simple reflexes to complex motor movements. The spinal cord begins at the medulla oblongata at the base of the brainstem and extends downward, terminating at the conus medullaris near the first and second lumbar vertebrae. The spinal cord's length in adults is...
Spinal Nerves: Plexus II01:21

Spinal Nerves: Plexus II

The plexuses of the lower body include the lumbar, sacral, and coccygeal plexuses, which innervate the abdomen, pelvis, legs, and coccygeal region. These plexuses control the transmission of sensory information and coordinate motor functions of the lower body.
The Lumbar Plexus
The lumbar plexus is situated within the lumbar region of the back and is primarily formed by the first four lumbar spinal nerves (L1 to L4). This plexus extends its branches into several nerves, including the...
Cranial Part of Parasympathetic Division01:18

Cranial Part of Parasympathetic Division

The cranial part of the parasympathetic division plays a crucial role in regulating the visceral functions of the head and specific structures in the neck, thoracic, and abdominopelvic cavities. Preganglionic fibers of the parasympathetic division exit the brain through cranial nerves III (oculomotor), VII (facial), IX (glossopharyngeal), and X (vagus), delivering parasympathetic output to the respective visceral structures.
The vagus nerve (cranial nerve X) alone accounts for approximately 75...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Impact of Graft-Versus-Host Disease Prophylaxis on Long-Term Outcomes in Patients Surviving Beyond Two Years After Allogeneic Transplantation.

JCO oncology practice·2026
Same author

CMV reactivation post allogeneic stem cell transplantation decreases relapse risk and survival, and increases NRM - a single center analysis.

Leukemia & lymphoma·2026
Same author

Early Initiation of Defibrotide is Associated With Better Survival in Sinusoidal Obstruction Syndrome/Veno-Occlusive Disease in Adults: Experience From Two Canadian Centers.

Transplantation and cellular therapy·2026
Same author

Identification of melon severe mosaic virus in cucurbits in Mississippi highlights the need for routine virus monitoring with assays targeting multiple viruses.

Plant disease·2026
Same author

Ferritin as a Pre-Transplant Biomarker for Post-Transplant Outcomes in Allogeneic Stem Cell Transplantation Using Post-Transplant Cyclophosphamide.

Transplantation and cellular therapy·2026
Same author

Improved early transplant outcomes with reduced-dose PTCy and low-dose ATG in matched unrelated donor allogeneic transplantation for acute myeloid leukaemia.

British journal of haematology·2026
Same journal

Concurrence of Inherited Nuclear and Mitochondrial DNA Optic Neuropathies.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Aspergillus-Infiltrated Optic Nerve Sheath Meningioma in Immunocompetent Host Mimicking Optic Neuritis.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Progression of Vitreous Detachment Leading to Exacerbation of Visual Field Loss in Acute Nonarteritic Anterior Ischemic Optic Neuropathy.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Characterizing the Role of Ophthalmologists in the Care of Patients With Suspected Giant Cell Arteritis at an Academic Medical Center.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Optic Disc Drusen Is Frequently Not Reported on Computed Tomography Scans Performed for Other Reasons.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
Same journal

Dorsal Midbrain Syndrome Due to Complicated Posterior Reversible Encephalopathy Syndrome.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society·2026
See all related articles

Related Experiment Video

Updated: Jun 13, 2026

Adaptable Angled Stereotactic Approach for Versatile Neuroscience Techniques
06:21

Adaptable Angled Stereotactic Approach for Versatile Neuroscience Techniques

Published on: May 7, 2020

The chiasmal spur.

Carol Chen1, Kai Tang, Maozhi Zhang

  • 1Washington University School of Medicine, St. Louis, Missouri, USA.

Journal of Neuro-Ophthalmology : the Official Journal of the North American Neuro-Ophthalmology Society
|May 1, 2010
PubMed
Summary
This summary is machine-generated.

The chiasmal spur, a rare anatomical anomaly, was identified during surgery for a pituitary tumor. This is the first documented intraoperative discovery and photographic evidence of this finding.

More Related Videos

Surgical Technique for Superior Cervical Ganglionectomy in a Murine Model
07:30

Surgical Technique for Superior Cervical Ganglionectomy in a Murine Model

Published on: December 2, 2022

Imaging Dendritic Spines in Caenorhabditis elegans
09:14

Imaging Dendritic Spines in Caenorhabditis elegans

Published on: September 27, 2021

Related Experiment Videos

Last Updated: Jun 13, 2026

Adaptable Angled Stereotactic Approach for Versatile Neuroscience Techniques
06:21

Adaptable Angled Stereotactic Approach for Versatile Neuroscience Techniques

Published on: May 7, 2020

Surgical Technique for Superior Cervical Ganglionectomy in a Murine Model
07:30

Surgical Technique for Superior Cervical Ganglionectomy in a Murine Model

Published on: December 2, 2022

Imaging Dendritic Spines in Caenorhabditis elegans
09:14

Imaging Dendritic Spines in Caenorhabditis elegans

Published on: September 27, 2021

Area of Science:

  • Neurosurgery
  • Neuroanatomy
  • Pathology

Background:

  • Pituitary tumors require surgical intervention, often involving craniotomy.
  • Anatomical variations near the optic chiasm can complicate surgical procedures.
  • The chiasmal spur is a previously described, rare anatomical anomaly.

Observation:

  • During a craniotomy for pituitary tumor removal, anomalous tissue was observed.
  • This tissue projected from the anterior angle of the optic chiasm.
  • The anomaly was termed "the chiasmal spur."

Findings:

  • The chiasmal spur has been previously reported in five patients.
  • All prior cases were incidental findings discovered during autopsy.
  • This case represents the first intraoperative identification and documentation of the chiasmal spur.

Implications:

  • Intraoperative identification of the chiasmal spur can improve surgical planning and patient safety.
  • Enhanced understanding of neuroanatomical variations is crucial for neurosurgical outcomes.
  • Further research may elucidate the etiology and clinical significance of the chiasmal spur.