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Related Concept Videos

Cranial Nerves: Types Part I01:14

Cranial Nerves: Types Part I

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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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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: Types Part II01:22

Cranial Nerves: Types Part II

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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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Spinal Nerves: Plexus I01:22

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Nerve plexuses are networks of interlacing nerves that serve as communication hubs to distribute and organize nerve action across various body regions. The nerve plexuses are organized into the cervical plexus located in the neck region, brachial plexus in the shoulder area, lumbar plexus found in the lower back, sacral plexus situated in the pelvis, and coccygeal plexus located in the coccygeal region.
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Cranial Part of Parasympathetic Division01:18

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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.
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Arteries of the Head and Neck01:26

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The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
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Trigeminal cervical complex: A neural network affecting the head and neck.

F Bou Malhab1, J Hosri2, G Zaytoun2

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European Annals of Otorhinolaryngology, Head and Neck Diseases
|October 12, 2024
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Summary
This summary is machine-generated.

The trigeminal cervical complex (TCC) framework explains head and neck pain by detailing nerve connections and neurotransmitter effects. This understanding can clarify symptoms like tinnitus, vertigo, and headaches.

Keywords:
NeuroanatomyOtolaryngologyTrigeminal cervical complexTrigeminal nerve

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Area of Science:

  • Neuroscience
  • Anatomy
  • Otolaryngology

Background:

  • The trigeminal nerve plays a crucial role in head and neck sensation and motor function.
  • Understanding the trigeminal cervical complex (TCC) is key to explaining complex head and neck symptoms.
  • Myofascial pain syndrome in the head and neck often involves intricate neural pathways.

Purpose of the Study:

  • To present the trigeminal cervical complex (TCC) as a framework for understanding trigeminal nerve functions.
  • To explain common otolaryngologic symptoms and head and neck myofascial pain syndrome.
  • To explore neurotransmitter transmission's role in TCC and motor nuclei sensitization.

Main Methods:

  • A narrative review of scientific literature.
  • Comprehensive database searches (Medline/OVID, Embase, Scopus, PubMed) until August 2023.
  • Extraction of data from 66 studies based on inclusion/exclusion criteria.

Main Results:

  • Detailed afferent and efferent connections of cranial nerves (VII, IX, X, XI) to the TCC are discussed.
  • These connections may explain unexplained head and neck clinical manifestations.
  • Bidirectional neurotransmitter transmission leads to TCC and motor nuclei sensitization.

Conclusions:

  • Central and peripheral sensitization of the TCC can elucidate the pathophysiology of various head and neck conditions.
  • Conditions like otalgia, tinnitus, hearing loss, vertigo, headache, and bruxism may be explained by TCC mechanisms.
  • The TCC framework offers insights into the complex etiology of cervicofacial pain and dysfunction.