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Related Concept Videos

Spinal Cord: Gross Anatomy01:15

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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...
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Sensory impulses related to touch, pressure, vibration, and proprioception from various body parts, such as the limbs, trunk, neck, and posterior head, travel to the cerebral cortex through the posterior column-medial lemniscus pathway. The pathway’s name derives from the two white-matter tracts that convey the impulses: the spinal cord's posterior column and the brainstem's medial lemniscus. First-order sensory neurons extend their axons into the spinal cord, forming the...
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Spinal nerves are pivotal conduits in the nervous system, bridging the central nervous system (CNS) with the peripheral nervous system (PNS). These nerves enable a complex communication network between the brain, spinal cord, and the rest of the body, facilitating sensory input, motor output, and autonomic functions.
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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.
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Related Experiment Video

Updated: Aug 7, 2025

A Contusive Model of Unilateral Cervical Spinal Cord Injury Using the Infinite Horizon Impactor
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Remote spinal trauma resulting in dorsal column spinal pathway dysfunction and anejaculation.

Angelica Griggs-Demmin1, Matthew Rabinowitz1, Ashley Paul2

  • 1Johns Hopkins University School of Medicine, 733 N. Broadway, Baltimore, MD, 21205, USA.

Urology Case Reports
|March 10, 2023
PubMed
Summary

Spinal cord injury can cause anejaculation, a rare condition. This case highlights how cervical spinal trauma led to diminished penile sensation and the inability to ejaculate in a 65-year-old male.

Keywords:
Anorgasmic anejaculationCervical myelopathySpinal cord injury

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Area of Science:

  • Neurology
  • Urology
  • Reproductive Medicine

Background:

  • Spinal cord injury (SCI) is an uncommon cause of anejaculation.
  • Anejaculation significantly impacts male fertility and sexual health.

Observation:

  • A 65-year-old male presented with a five-year history of intractable anejaculation.
  • The patient had a history of minor spinal trauma from a fall, resulting in cervical myelopathy and C1/C2 spinal fusion.

Findings:

  • Neurological examination and biothesiometry revealed diminished somatic sensation of the glans penis in a frequency-dependent pattern.
  • The patient exhibited pudendal sensory loss correlating with his spinal trauma.
  • Peripheral nervous system evaluation and imaging showed no abnormalities, suggesting a central nervous system origin.

Implications:

  • This case suggests a potential link between cervical spinal trauma and anejaculation.
  • Understanding the neurological pathways involved in ejaculation is crucial for managing related sexual dysfunction.
  • Further research into SCI-induced anejaculation may improve diagnostic and therapeutic strategies.