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Related Concept Videos

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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 thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
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The Thoracic Cage: Sternum01:17

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The thoracic or rib cage forms the body's thorax (chest) portion. Its primary function in the body is to protect vital organs in the thoracic cavity, such as the heart and the lungs. It consists of 12 pairs of ribs with their costal cartilages and the sternum. The ribs are anchored posteriorly to the 12 thoracic vertebrae (T1-T12).
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The lateral view of the cranium is dominated by temporal, sphenoid, and ethmoid bones.
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The skeleton is subdivided into two major divisions—the axial skeleton and the appendicular skeleton. The axial skeleton forms the vertical, central axis of the body. It includes all of the bones of the head, neck, chest, and back. It protects the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back and for muscles that act across the shoulder and hip joints to move their corresponding limbs.
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Buckled Thyroid Cartilage: An Anatomic Variant.

Brent A Chang1, Kimberly Luu1, Ethan K Newton1

  • 1Division of Otolaryngology-Head & Neck Surgery, University of British Columbia, Vancouver General Hospital, Vancouver, British Columbia, Canada.

Journal of Voice : Official Journal of the Voice Foundation
|August 28, 2017
PubMed
Summary
This summary is machine-generated.

An inward buckling of the thyroid cartilage, termed buckled thyroid cartilage, can cause voice complaints like hoarseness and vocal fatigue. Recognizing this anatomical variant is crucial for diagnosis and treatment.

Keywords:
Anatomical variantAnatomyDeformityLarynxThyroid cartilage

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Area of Science:

  • Laryngology
  • Anatomy
  • Vocal Fold Physiology

Background:

  • Anatomic abnormalities of the larynx can lead to significant vocal symptoms.
  • The thyroid cartilage is a key laryngeal structure.

Purpose of the Study:

  • To identify and describe an anatomical variant of the thyroid cartilage.
  • To investigate the association between this variant and voice-related complaints.

Main Methods:

  • Retrospective case series of 11 patients.
  • Chart review over 20 years from a tertiary care laryngology practice.
  • Diagnosis confirmed by computed tomography (CT) scan showing inward buckling of the thyroid cartilage.

Main Results:

  • 11 patients diagnosed with buckled thyroid cartilage.
  • Common symptoms included hoarseness (54%), globus sensation (45%), and vocal fatigue (27%).
  • One patient with a history of laryngeal trauma was included; surgical correction resolved symptoms.

Conclusions:

  • Buckled thyroid cartilage can cause false vocal fold deformity, impacting vocal fold vibration.
  • This anatomical variant can lead to symptomatic hoarseness and vocal fatigue.
  • Awareness and recognition of buckled thyroid cartilage are important for clinicians.