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Related Concept Videos

Larynx01:21

Larynx

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The human larynx, often referred to as the voice box, is an intricate organ located in the neck. It serves as a pathway for air to enter the lungs during respiration and is an essential component of voice production.
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The larynx consists of various components, including cartilage, muscles, and vocal cords. Its structure includes three large unpaired cartilages—the thyroid, cricoid, and epiglottis—and three smaller paired cartilages—the arytenoids,...
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Anatomy of Respiratory System I: Upper Respiratory Tract01:29

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The upper respiratory tract plays a vital role in the respiratory system, comprising several structures that facilitate air intake and prepare air for the lungs. It also serves as the first line of defense against pathogens and particles. This tract includes the nose and nasal cavity, the oral cavity, the paranasal sinuses, and the pharynx, each with specific functions and features.
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Pharynx01:20

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The pharynx, a tubular structure framed by skeletal muscle and lined with mucous membrane, extends continuously from the nasal cavities. It is segmented into three major areas: the nasopharynx, oropharynx, and laryngopharynx.
Nasopharynx
The nasopharynx, bordered by the conchae of the nasal cavity, serves exclusively as an air conduit. In its superior region, the pharyngeal tonsils or adenoids are located. These tonsils are clusters of lymphoid reticular tissue akin to a lymph node. The precise...
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The Hyoid Bone01:12

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The hyoid bone is a small U-shaped bone located in the upper neck at the level of the inferior mandible, with its tips pointing posteriorly. It does not directly articulate with any other bone in the body. The hyoid acts as the attachment site for the tongue, the larynx, and the pharynx. It is held in position by a series of small muscles attached from above or below. These muscles help to move the hyoid up/down or forward/back in coordination with movements of the tongue, larynx, and pharynx...
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Anatomy of Respiratory System II: Lower Respiratory Tract01:31

Anatomy of Respiratory System II: Lower Respiratory Tract

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The lower respiratory tract is anatomically composed of several vital structures, including the larynx, trachea, bronchial tree, alveoli, lungs, and pleurae. Each component has a specific function, and all are intricately connected to ensure efficient respiration.
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The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
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Structure, Function and Insertion of the Human Vocal Folds.

Friedrich Paulsen1, Bernhard Tillmann2

  • 1Department of Functional and Clinical Anatomy, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany, friedrich.paulsen@fau.de.

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Summary

This study details the laryngeal vocal fold structures and their connections. Findings are discussed for biomechanical, functional, and clinical relevance in voice production.

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Area of Science:

  • Anatomy and Biomechanics of the Larynx
  • Vocal Fold Physiology
  • Clinical Laryngology

Background:

  • The intricate structure of the laryngeal vocal folds is crucial for voice production.
  • Understanding specific insertion points, such as the anterior commissure and vocal process, is key to comprehending vocal fold function.
  • Previous research has established the general anatomy, but a focused summary integrating biomechanical and clinical aspects is needed.

Purpose of the Study:

  • To provide a comprehensive summary of the laryngeal vocal fold structures.
  • To elucidate the specific insertion structures at the anterior commissure and vocal process.
  • To contextualize these anatomical findings within biomechanical, functional, and clinical implications.

Main Methods:

  • Review and synthesis of existing anatomical and biomechanical literature on the larynx.
  • Detailed description of vocal fold anatomy, focusing on anterior commissure and vocal process attachments.
  • Integration of functional and clinical data relevant to vocal fold structure.

Main Results:

  • Detailed description of the layered structure of the vocal folds.
  • Characterization of the ligamentous and muscular attachments at the anterior commissure.
  • Anatomical description of the vocal process and its role in vocal fold tension and vibration.

Conclusions:

  • The specific structural arrangements of the vocal folds, particularly at their insertions, directly influence biomechanical behavior.
  • Understanding these structures is essential for diagnosing and treating voice disorders.
  • This summary provides a foundation for further research into vocal fold mechanics and clinical applications.