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Cranial Nerves: Overview and Anatomy01:19

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The cranial nerves are an important part of the complex network of nerves in the human body. These nerves emerge directly from the brain and are responsible for transmitting essential information between the brain and various parts of the head and neck. There are 12 pairs of cranial nerves, systematically numbered using Roman numerals from I to XII, beginning from the anterior and moving to the posterior of the brain. Each cranial nerve is uniquely identified by names that reflect its function...
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Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves. While the first six innervate the head and neck, the latter six nerves innervate the head and neck, as well as organs and tissues in the thoracic and abdominal cavities. They facilitate communication, expression, and autonomic control within the human body.
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Cranial nerves are responsible for transmitting motor and sensory information between the brain and various parts of the body. There are twelve pairs of cranial nerves, with the first six being essential in sensory perception, motor control, and autonomic functions related to the head and neck.
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The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
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Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
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Organization of the Brain01:30

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The brain is an integral component of the nervous system and serves as the center for processing sensory inputs, making decisions, and directing bodily actions. This complex organ is organized into three primary sections: the hindbrain, midbrain, and forebrain, each responsible for a range of vital functions.
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Perspectives on Neuroscience
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Updates in neuro-otology.

Olwen C Murphy1, Nicholas E F Hac, Daniel R Gold

  • 1Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

Current Opinion in Neurology
|November 16, 2022
PubMed
Summary

This review covers recent advancements in neuro-otology, focusing on benign positional paroxysmal vertigo, acute vestibular syndrome, autoimmune disorders like kelch-like protein 11 encephalitis, and cerebellar ataxia, neuropathy, vestibular areflexia syndrome.

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Area of Science:

  • Neuroscience
  • Otolaryngology

Background:

  • Neuro-otology addresses complex disorders affecting balance and hearing.
  • Keeping abreast of recent clinical findings is crucial for effective patient management.

Approach:

  • This review synthesizes key updates from recent literature in neuro-otology.
  • Focus is placed on four significant areas of clinical interest.

Key Points:

  • Updates on short arm variant of posterior canal benign positional paroxysmal vertigo (BPPV).
  • Role of video-oculography in diagnosing acute vestibular syndrome.
  • Clinical features of newly identified kelch-like protein 11 encephalitis.
  • Recent genetic insights into cerebellar ataxia, neuropathy, vestibular areflexia syndrome.

Conclusions:

  • Recent advancements offer improved diagnostic and understanding of neuro-otologic conditions.
  • These updates have direct clinical implications for patient care and treatment strategies.