[MARMAM] New publication about the spermaceti chamber of dwarf sperm whale

Carlos Sacristan carlosvet.sac at gmail.com
Sun Mar 26 08:30:47 PDT 2017


Dear all,

We would like to share with the group the news of the publication of our
work:

'*Histological aspects of the mucosa of the spermaceti chamber of a dwarf
sperm whale*."
Samira Costa-Silva, Carlos Sacristán, Kátia Regina Groch, Angélica María
Sánchez Sarmiento, Laura Reisfeld, Gustavo Dutra, Cristiane Lassálvia, José
Luiz Catão DiasSamira Costa-Silva, Carlos Sacristán, Kátia Regina Groch,
Angélica María Sánchez Sarmiento, Laura Reisfeld, Gustavo Dutra, Cristiane
Lassálvia, José Luiz Catão Dias
Brazilian Journal of Veterinary Research and Animal Science, 2017

Vol 53 , Issue 3, 1-5; doi:
http://dx.doi.org/10.11606/issn.1678-4456.bjvras.2016.109799


*Abstract*
The sound producing apparatus of the dwarf sperm whale (Kogia sima )
presents a complex anatomic structure composed of melon, spermaceti, phonic
lips, vocal cap, case, papillae, spermaceti chamber and other airspaces, as
well as facial muscles involved in sound production. The spermaceti chamber
rests on the caudal portion of the premaxilla, with part of its mucosa
covered with spherical/oval-shaped structures (approximately 1 to 2 mm in
diameter), compatible with vesicles (previously referred to as “papillae”).
Macroscopical examination revealed whitish, firm, widely and irregularly
distributed vesicular mucosa on the premaxillary portion of the spermaceti
chamber of a K. sima specimen stranded on the coast of Santos (southeastern
Brazilian coast). Upon microscopic examination, walls of connective tissue
with abundant type I collagen forming vesicles with an internal space or
cavity filled with a small amount of eosinophilic substance compatible with
mucoproteic fluid were observed. The base of such vesicles presented glands
within the connective tissue, probably responsible for fluid production.
This study describes the histology of the mucosa of the spermaceti chamber
of a K. sima specimen and characterizes the glands associated with fluid
production.

The article can be downloaded at:

https://www.google.com.br/url?sa=t&rct=j&q=&esrc=s&source=we
b&cd=1&ved=0ahUKEwjNvJiguaTSAhUJjpAKHY_VCEcQFggcMAA&url=http
%3A%2F%2Fwww.revistas.usp.br%2Fbjvras%2Farticle%2Fdownload%
2F109799%2F122753&usg=AFQjCNHrf4Ul9A4yOhBWcoeQqTtxPA
dxfA&sig2=ibEEUb6roas4kkI9FNGVVg

http://www.revistas.usp.br/bjvras/search/search?simpleQuery=
kogia&searchField=query

Best regards

Carlos Sacristán

carlosvet.sac at gmail.com

*Carlos Sacristán Yagüe*
DVM, MSc, PhD Candidate of Department of Pathology - VPT
Laboratory of  Wildlife Comparative Pathology - LAPCOM
School of  Veterinary Medicine and Animal Sciences - FMVZ
University of São Paulo (Brazil)

https://www.linkedin.com/pub/carlos-sacristan-yague/50/266/854

https://www.researchgate.net/profile/Carlos_Sacristan/info
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