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Titolo:
Morphology of the complex laryngeal gland in the Atlantic bottlenose dolphin, Tursiops truncatus
Autore:
Smith, TL; Turnbull, BS; Cowan, DF;
Indirizzi:
UnivSAexas, Med Branch, Dept Pathol, Div Surg Pathol, Galveston, TX 77555 U Univ Texas Galveston TX USA 77555 Div Surg Pathol, Galveston, TX 77555 U Univ Texas, Med Branch, Inst Marine Biomed, Galveston, TX 77555 USA Univ Texas Galveston TX USA 77555 Marine Biomed, Galveston, TX 77555 USA Texas Marine Mammal Stranding Network, Galveston, TX 77551 USA Texas Marine Mammal Stranding Network Galveston TX USA 77551 TX 77551 USA
Titolo Testata:
ANATOMICAL RECORD
fascicolo: 1, volume: 254, anno: 1999,
pagine: 98 - 106
SICI:
0003-276X(19990101)254:1<98:MOTCLG>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
ORGANS;
Keywords:
cetacean; larynx; lymphoepithelial; lymphoglandular organ; immune system; anatomy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Cowan, DF UnivSAexas, Med Branch, Dept Pathol, Div Surg Pathol, Galveston,TX 77555 U Univ Texas Galveston TX USA 77555 Pathol, Galveston, TX 77555 U
Citazione:
T.L. Smith et al., "Morphology of the complex laryngeal gland in the Atlantic bottlenose dolphin, Tursiops truncatus", ANAT REC, 254(1), 1999, pp. 98-106

Abstract

A complex lymphoepithelial gland is a constant feature in the larynx of Atlantic bottlenose dolphins, Tursiops truncatus, based on study of 56 animals. Larynges were removed from fresh, non-decomposed beach-stranded animals for gross examination and histological sampling. A large lymphoepithelial gland occurs in the rostro-ventral mucosa of the larynx, overlying the cricoid cartilage. It presents as a well-defined, elevated, and heavily trabeculated area. Histological examination reveals a pseudostratified columnar epithelium which branches into the underlying submucosa. The epithelial-lined folds and crypts thus formed are surrounded by aggregations of lymphocytes, which infiltrate this epithelium. Mucous glandsare often associated with these lymphoid aggregations. The histological appearance of the laryngeal gland is remarkably similar to the palatine, or dorsal oropharyngeal tonsils, of T. truncatus. It may beanalogous to the nasopharyngeal adenoid of terrestrial animals. Age-related involution of the laryngeal gland is not as obvious with increasing animal age (or length) as it is in other mucosa-associated lymphoid tissue. The distribution of this gland among cetaceans is not yet known. We have observed it in individuals of every species we have studied, including Lagenodelphis hosei, Stenella coeruleoalba, Stenella attenuata, Globicephala macrorhynchus, Steno bredanensis, Physeter catodon, Pseudorca crassidens, Mesoplodon europaeus, and Kogia breviceps. Anat Rec 254:98-106, 1999. (C) 1999 Wiley-Liss, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 08/08/20 alle ore 23:15:16