The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions
ABSTRACT This study describes the morphology of the laryngeal apparatus in bowhead whales ( Balaena mysticetus ) with respect to respiration, deglutition, and vocalization. We also examined the intrinsic cricoarytenothyroid muscle ( Musculus (M.) diverticuli laryngei ) which forms the laryngeal dive...
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crwiley:10.1002/ar.22907 2024-06-02T08:03:52+00:00 The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions Schoenfuss, Heiko L. Bragulla, Hermann H. Schumacher, Jeffrey Henk, William G. Craig George, J. Hillmann, Daniel J. 2014 http://dx.doi.org/10.1002/ar.22907 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Far.22907 https://onlinelibrary.wiley.com/doi/full/10.1002/ar.22907 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor The Anatomical Record volume 297, issue 7, page 1316-1330 ISSN 1932-8486 1932-8494 journal-article 2014 crwiley https://doi.org/10.1002/ar.22907 2024-05-03T10:49:40Z ABSTRACT This study describes the morphology of the laryngeal apparatus in bowhead whales ( Balaena mysticetus ) with respect to respiration, deglutition, and vocalization. We also examined the intrinsic cricoarytenothyroid muscle ( Musculus (M.) diverticuli laryngei ) which forms the laryngeal diverticulum, to ascertain its interactions with the laryngeal cartilages during respiration and sound production. Five fetal larynges and four from adult whales were studied using noninvasive imaging, as well as macroscopic and microscopic techniques. The larynx extends from the skull base into the thoracic inlet. The dorsally curved laryngeal stalk, supported by epiglottis and the corniculate processes of arytenoid cartilages, is situated within the nasopharynx. The epiglottic cartilage exhibits a prominent medial ridge. The arytenoid cartilages are rod‐shaped, and extend through the laryngeal cavity. The thyroid cartilage possesses a prominent caudal horn with a fibrous articulation to the ventrally incomplete cricoid cartilage. The M. thyroepiglotticus forms the connection between epiglottic and thyroid cartilages. The M. cricothyroideus lateralis connects the caudal horn of the thyroid cartilage with the cricoid cartilage and the M. cricothyroideus medialis connects the cricoid and thyroid cartilage. An extensive laryngeal diverticulum (Diverticulum laryngis) , formed by the laryngeal mucosa and M. diverticuli laryngei , is positioned caudo‐ventral to the laryngeal vestibule. The mucosa thickens into a fold medial to the vocal processes of the arytenoid cartilages. Experiments with airflow combined with histological and anatomical evidence strongly suggest a sound producing function for these (vocal) folds. This analysis provides the first account of sound producing structures and function in bowhead whales. Anat Rec, 297:1316–1330, 2014. © 2014 Wiley Periodicals, Inc. Article in Journal/Newspaper Balaena mysticetus bowhead whale Wiley Online Library The Anatomical Record 297 7 1316 1330 |
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Open Polar |
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Wiley Online Library |
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crwiley |
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English |
description |
ABSTRACT This study describes the morphology of the laryngeal apparatus in bowhead whales ( Balaena mysticetus ) with respect to respiration, deglutition, and vocalization. We also examined the intrinsic cricoarytenothyroid muscle ( Musculus (M.) diverticuli laryngei ) which forms the laryngeal diverticulum, to ascertain its interactions with the laryngeal cartilages during respiration and sound production. Five fetal larynges and four from adult whales were studied using noninvasive imaging, as well as macroscopic and microscopic techniques. The larynx extends from the skull base into the thoracic inlet. The dorsally curved laryngeal stalk, supported by epiglottis and the corniculate processes of arytenoid cartilages, is situated within the nasopharynx. The epiglottic cartilage exhibits a prominent medial ridge. The arytenoid cartilages are rod‐shaped, and extend through the laryngeal cavity. The thyroid cartilage possesses a prominent caudal horn with a fibrous articulation to the ventrally incomplete cricoid cartilage. The M. thyroepiglotticus forms the connection between epiglottic and thyroid cartilages. The M. cricothyroideus lateralis connects the caudal horn of the thyroid cartilage with the cricoid cartilage and the M. cricothyroideus medialis connects the cricoid and thyroid cartilage. An extensive laryngeal diverticulum (Diverticulum laryngis) , formed by the laryngeal mucosa and M. diverticuli laryngei , is positioned caudo‐ventral to the laryngeal vestibule. The mucosa thickens into a fold medial to the vocal processes of the arytenoid cartilages. Experiments with airflow combined with histological and anatomical evidence strongly suggest a sound producing function for these (vocal) folds. This analysis provides the first account of sound producing structures and function in bowhead whales. Anat Rec, 297:1316–1330, 2014. © 2014 Wiley Periodicals, Inc. |
format |
Article in Journal/Newspaper |
author |
Schoenfuss, Heiko L. Bragulla, Hermann H. Schumacher, Jeffrey Henk, William G. Craig George, J. Hillmann, Daniel J. |
spellingShingle |
Schoenfuss, Heiko L. Bragulla, Hermann H. Schumacher, Jeffrey Henk, William G. Craig George, J. Hillmann, Daniel J. The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions |
author_facet |
Schoenfuss, Heiko L. Bragulla, Hermann H. Schumacher, Jeffrey Henk, William G. Craig George, J. Hillmann, Daniel J. |
author_sort |
Schoenfuss, Heiko L. |
title |
The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions |
title_short |
The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions |
title_full |
The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions |
title_fullStr |
The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions |
title_full_unstemmed |
The anatomy of the larynx of the bowhead whale, Balaena mysticetus, and its sound‐producing functions |
title_sort |
anatomy of the larynx of the bowhead whale, balaena mysticetus, and its sound‐producing functions |
publisher |
Wiley |
publishDate |
2014 |
url |
http://dx.doi.org/10.1002/ar.22907 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Far.22907 https://onlinelibrary.wiley.com/doi/full/10.1002/ar.22907 |
genre |
Balaena mysticetus bowhead whale |
genre_facet |
Balaena mysticetus bowhead whale |
op_source |
The Anatomical Record volume 297, issue 7, page 1316-1330 ISSN 1932-8486 1932-8494 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ar.22907 |
container_title |
The Anatomical Record |
container_volume |
297 |
container_issue |
7 |
container_start_page |
1316 |
op_container_end_page |
1330 |
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1800748474994524160 |