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Larynx01:21

Larynx

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, corniculates, and...
Endoscopic Studies I: Bronchoscopy and Thoracoscopy01:30

Endoscopic Studies I: Bronchoscopy and Thoracoscopy

Endoscopy is a non-surgical medical technique used to examine a person's internal organs and vessels. This lesson will focus on two types of endoscopic studies: bronchoscopy and thoracoscopy.
Bronchoscopy
Description
Bronchoscopy is a procedure that involves direct visualization of the larynx, trachea, and bronchi for diagnostic and therapeutic purposes. A flexible fiber optic or rigid bronchoscope is used to carry out the procedure. The fiber-optic bronchoscope is more frequently used due to...

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Related Experiment Video

Updated: Jul 2, 2026

A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules
10:26

A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules

Published on: May 19, 2023

VOCAL NODULES-A High-Speed Photographic Analysis: Notes on Treatment.

H J Rubin

    California Medicine
    |December 1, 1961
    PubMed
    Summary
    This summary is machine-generated.

    Vocal nodules are benign growths on the vocal cords caused by voice misuse. High-speed imaging shows they disrupt normal vocal cord vibration, requiring treatments like vocal rest or surgery.

    Related Experiment Videos

    Last Updated: Jul 2, 2026

    A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules
    10:26

    A 3D Digital Model for the Diagnosis and Treatment of Pulmonary Nodules

    Published on: May 19, 2023

    Area of Science:

    • Otolaryngology, Speech Pathology

    Background:

    • Vocal nodules are benign tumefactions on the vocal cords.
    • They result from excessive or improper voice use.
    • Nodules vary in size, shape, location, and histology, presenting as a clinical entity.

    Purpose of the Study:

    • To investigate the impact of vocal nodules on vocal cord vibratory patterns.
    • To understand the clinical and pathological characteristics of vocal nodules.

    Main Methods:

    • Utilized high-speed motion pictures at 5,000 frames per second.
    • Observed the vibratory patterns of vocal cords with nodules.

    Main Results:

    • Vocal nodules were observed to disturb the normal vibratory pattern of the vocal cords.
    • This disturbance is similar to that caused by other benign vocal cord tumors.

    Conclusions:

    • Vocal nodules significantly alter vocal cord vibration.
    • Treatment strategies include vocal rest, vocal reeducation, and surgical intervention, individually or combined.