Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Larynx01:21

Larynx

6.4K
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,...
6.4K
The Hyoid Bone01:12

The Hyoid Bone

6.8K
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...
6.8K
Anatomy of Respiratory System I: Upper Respiratory Tract01:29

Anatomy of Respiratory System I: Upper Respiratory Tract

6.9K
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.
Nose and nasal cavity
The nose and nasal cavity represent the main external openings of the respiratory tract....
6.9K
Assessment of Airway, Skin Color, and Use of Accessory Muscles01:30

Assessment of Airway, Skin Color, and Use of Accessory Muscles

1.8K
A thorough assessment of respiratory health is paramount in clinical settings to identify and manage respiratory distress and ensure adequate oxygenation. This article elaborates on the critical aspects of respiratory evaluation, including airway assessment, skin color examination, and the observation of accessory muscle use, which are integral to effectively diagnosing and managing patients with respiratory conditions.
Introduction
The initial evaluation of a patient's respiratory system...
1.8K
Pharynx01:20

Pharynx

9.7K
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...
9.7K
Gross Anatomy of the Lungs01:17

Gross Anatomy of the Lungs

6.2K
The lungs are a pair of vital organs connected to the trachea via the left and right bronchi. The base of these organs meets the dome-shaped muscle known as the diaphragm. Encased by the pleurae, the lungs contact the mediastinum. The right lung is shorter yet wider, and has a larger volume than the left lung. The left lung has an indentation known as the cardiac notch. The superior region of the lungs is referred to as the apex, whereas the base is the lower region near the diaphragm. The...
6.2K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

What the "Voices" of Dysphagia Are Thinking about Its Future.

International archives of otorhinolaryngology·2026
Same author

Neurodegeneration of the mastoid segment of the human facial nerve associated with senescence.

Brazilian journal of otorhinolaryngology·2026
Same author

Dysphagia in Neurodegenerative Diseases: Aspects to be Considered when Seeking Quality of Life.

International archives of otorhinolaryngology·2026
Same author

Nanoemulsions as carriers for malignant brain tumors treatment: a scoping review on drugs, natural compounds, and siRNA delivery.

Nanomedicine (London, England)·2025
Same author

Regular physical activity and its components as predictors of depressive symptoms in young Brazilians after mandatory military service: A prospective cohort study.

Acta psychologica·2025
Same author

Allocation of expedited placement livers for transplantation: efficiency at the price of equity?

Surgery·2025

Related Experiment Video

Updated: Apr 30, 2026

Preparation of the Rat Vocal Fold for Neuromuscular Analyses
07:17

Preparation of the Rat Vocal Fold for Neuromuscular Analyses

Published on: May 15, 2020

3.5K

A morphometric study of the larynx.

Geraldo Pereira Jotz1, Marco Antônio Stefani1, Omero Pereira da Costa Filho2

  • 1Morphological Sciences Department/Basic Sciences of Health Institute, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.

Journal of Voice : Official Journal of the Voice Foundation
|May 13, 2014
PubMed
Summary

Laryngeal measurements reveal significant sexual dimorphism in South Brazilian adults over 40, with men generally having larger structures than women. Age did not significantly impact these laryngeal dimensions.

Keywords:
AnatomyLarynxMorphometryPathology

More Related Videos

Learning Modern Laryngeal Surgery in a Dissection Laboratory
07:30

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Published on: March 18, 2020

8.8K
Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions
10:13

Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions

Published on: November 25, 2017

10.1K

Related Experiment Videos

Last Updated: Apr 30, 2026

Preparation of the Rat Vocal Fold for Neuromuscular Analyses
07:17

Preparation of the Rat Vocal Fold for Neuromuscular Analyses

Published on: May 15, 2020

3.5K
Learning Modern Laryngeal Surgery in a Dissection Laboratory
07:30

Learning Modern Laryngeal Surgery in a Dissection Laboratory

Published on: March 18, 2020

8.8K
Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions
10:13

Hemi-laryngeal Setup for Studying Vocal Fold Vibration in Three Dimensions

Published on: November 25, 2017

10.1K

Area of Science:

  • Anatomy
  • Morphometrics
  • Forensic Anthropology

Background:

  • Laryngeal anatomy exhibits variations influenced by sex and age.
  • Understanding these variations is crucial for fields like forensic science and speech pathology.

Purpose of the Study:

  • To quantitatively describe laryngeal morphometrics in a South Brazilian population.
  • To compare laryngeal measurements between males and females.
  • To assess the influence of age on laryngeal dimensions in adults over 40.

Main Methods:

  • Populational morphometric study involving 100 fresh cadavers (50 male, 50 female) over 40 years old.
  • Detailed measurements of the thyroid cartilage, vocal folds (VF), and related laryngeal structures.
  • Measurements included thyroid cartilage width, distances to the anterior commissure (AC), and vocal fold dimensions (length, width, thickness).

Main Results:

  • Significant sexual dimorphism was observed, with most laryngeal measurements larger in males than females.
  • The thyroid angle was significantly greater in females compared to males (P < 0.05).
  • No significant morphometric differences were found between age groups within the same sex (P > 0.05).

Conclusions:

  • Laryngeal dimensions in this South Brazilian cohort exhibit clear sexual dimorphism.
  • Age over 40 does not appear to significantly alter laryngeal morphometrics in individuals of the same sex.