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Related Concept Videos

Muscles of the Anterior Neck01:26

Muscles of the Anterior Neck

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The anterior neck muscles are the group of muscles covering the front part of the neck. These muscles are classified into three subgroups. The first one is the superficial muscles, the most visible muscles in the front of the neck. It includes the platysma and sternocleidomastoid. The second group is the suprahyoid muscles, located above the hyoid bone. This group comprises the digastric, mylohyoid, geniohyoid, and stylohyoid. Lastly, the infrahyoid muscles are found below the hyoid bone and...
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The Hyoid Bone01:12

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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Muscles of the Shoulder01:23

Muscles of the Shoulder

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The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula.
Anterior Thoracic Muscles
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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.
Anatomy of the Larynx
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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The Thyroid Gland01:23

The Thyroid Gland

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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.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
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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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Related Experiment Video

Updated: Aug 4, 2025

Transoral Endoscopic Thyroidectomy Vestibular Approach for Thyroid Lobectomy
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Transoral Endoscopic Thyroidectomy Vestibular Approach for Thyroid Lobectomy

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Thyroarytenoid Muscle Avulsion.

Philip J Maxwell1, Daniel Eichorn2, Robert T Sataloff3

  • 1Drexel University College of Medicine, Philadelphia, Pennsylvania, USA.

Journal of Voice : Official Journal of the Voice Foundation
|April 3, 2023
PubMed
Summary
This summary is machine-generated.

Thyroarytenoid muscle avulsion, a rare laryngeal trauma, causes voice issues. Diagnosis is confirmed during surgery, and this study details repair techniques for this previously undescribed condition.

Keywords:
Dysphonia—Laryngeal trauma—Thyroarytenoid muscle avulsion—Vocal process avulsion

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Area of Science:

  • Otolaryngology
  • Laryngeal Surgery
  • Voice Science

Background:

  • Thyroarytenoid muscle avulsion is a rare consequence of laryngeal trauma.
  • Symptoms like severe dysphonia and voice fatigue are nonspecific and mimic other laryngeal injuries.
  • Previous literature has not described this specific condition.

Purpose of the Study:

  • To describe the condition of thyroarytenoid muscle avulsion.
  • To present two cases of this previously undescribed injury.
  • To detail surgical repair techniques for thyroarytenoid muscle avulsion.

Main Methods:

  • Review of two patient cases with suspected thyroarytenoid muscle avulsion.
  • Diagnostic methods included strobovideolaryngoscopy, laryngeal electromyography, and laryngeal computed tomography.
  • Definitive diagnosis was established via intraoperative palpation under general anesthesia.

Main Results:

  • Two cases of thyroarytenoid muscle avulsion were identified and successfully repaired.
  • Intraoperative palpation confirmed the muscle separation from the arytenoid cartilage.
  • Surgical repair techniques were successfully applied.

Conclusions:

  • Thyroarytenoid muscle avulsion is a distinct clinical entity resulting from laryngeal trauma.
  • Diagnosis can be challenging, with intraoperative findings being definitive.
  • Surgical intervention offers a means of repair for this rare condition.