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Related Concept Videos

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.
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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 Bone

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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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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 lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
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Anatomy of the Ear01:16

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Auditory sensation, commonly called hearing, involves the transformation of sonic waves into neural impulses facilitated by the structures of the auditory organ. The prominent, flesh-like structure on the side of the head, called the auricle, directs sound waves towards the auditory canal. The auricle is often mislabeled as the pinna, a term more aligned with mobile structures like a feline's external ear. The auditory canal penetrates the cranium via the external auditory meatus of the...
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Visualization and Analysis of Pharyngeal Arch Arteries using Whole-mount Immunohistochemistry and 3D Reconstruction
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Pharyngeal Arches, Chapter 2: Ear and Neck Abnormalities.

Alexandra Junn1, Athena Zhang, Esperanza Mantilla-Rivas

  • 1Division of Plastic and Reconstructive Surgery, Children's National Hospital, Washington, DC.

The Journal of Craniofacial Surgery
|September 2, 2024
PubMed
Summary

Pharyngeal arches are crucial for face and neck development. Understanding their abnormal development is key for plastic surgeons diagnosing and treating craniofacial and neck anomalies.

Keywords:
Abnormalitiescongenitalembryologypharyngeal arches

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Area of Science:

  • Embryology
  • Developmental Biology
  • Plastic Surgery

Background:

  • Pharyngeal arches form the basis of craniofacial and neck structures.
  • Developmental errors in pharyngeal arches lead to congenital abnormalities.
  • Plastic surgeons frequently encounter pathologies linked to aberrant pharyngeal arch anatomy.

Purpose of the Study:

  • To provide plastic surgeons with a focused review of abnormal pharyngeal arch development.
  • To elucidate the embryologic origins of common ear and neck anomalies.
  • To enhance diagnostic and treatment strategies for craniofacial pathologies.

Main Methods:

  • Review of embryologic development of pharyngeal arches.
  • Correlation of abnormal development with clinical presentations of ear and neck anomalies.
  • Focus on pathologies relevant to plastic surgery practice.

Main Results:

  • Detailed description of pharyngeal arch derivatives and their common anomalies.
  • Explanation of how specific developmental disruptions manifest as ear and neck pathologies.
  • Emphasis on the surgical relevance of understanding embryologic variations.

Conclusions:

  • A strong grasp of normal and abnormal pharyngeal arch development is essential for plastic surgeons.
  • This knowledge aids in accurate diagnosis and effective management of craniofacial and neck deformities.
  • This manuscript serves as a critical resource for understanding congenital ear and neck anomalies.