Structural and functional imaging of bottlenose dolphin (Tursiops truncatus) cranial anatomy

The Journal of Experimental Biology
Dorian S HouserS H Ridgway

Abstract

Bottlenose dolphins were submitted to structural (CT) and functional (SPECT/PET) scans to investigate their in vivo anatomy and physiology with respect to structures important to hearing and echolocation. The spatial arrangement of the nasal passage and sinus air spaces to the auditory bullae and phonic lips was studied in two dolphins via CT. Air volume of the sinuses and nasal passages ranged from 267.4 to 380.9 ml. Relationships of air spaces to the auditory bullae and phonic lips support previous hypotheses that air protects the ears from echolocation clicks generated by the dolphin and contributes to dolphin hearing capabilities (e.g. minimum angular resolution, inter-aural intensity differences). Lung air may replenish reductions in sinus and nasal passage air volume via the palatopharyngeal sphincter, thus permitting the echolocation mechanism to operate at depth. To determine the relative extent of regional blood flow within the head of the dolphin, two dolphins were scanned with SPECT after an intravenous dose of 1850 MBq 99mTc-bicisate. A single dolphin received 740 MBq of 18F-2-fluoro-2-deoxyglucose (FDG) to identify the relative metabolic activity of head tissues. Substantial blood flow was noted across the dorsoant...Continue Reading

References

Nov 1, 1989·Computerized Medical Imaging and Graphics : the Official Journal of the Computerized Medical Imaging Society·R A RobbM C Stacy
Aug 1, 1974·The Journal of the Acoustical Society of America·K S Norris, G W Harvey
Dec 26, 1969·Science·S H RidgwayJ Kanwisher
Dec 1, 1970·The Journal of the Acoustical Society of America·J G McCormickJ Palin
Jan 12, 2002·The Journal of the Acoustical Society of America·J L Aroyan
May 27, 2003·The Journal of the Acoustical Society of America·Alexander Ya SupinWhitlow W L Au
Jan 1, 1989·IEEE Transactions on Medical Imaging·R A Robb, C Barillot

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Citations

Jan 22, 2010·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Simo HemiläTom Reuter
May 20, 2006·The Journal of the Acoustical Society of America·James J Finneran, Dorian S Houser
Aug 1, 2006·The Journal of the Acoustical Society of America·Alexander Ya SupinMarlee Breese
Sep 8, 2010·The Journal of the Acoustical Society of America·James J FinneranSam H Ridgway
Feb 23, 2012·The Journal of the Acoustical Society of America·Brian K BranstetterHitomi Aihara
Dec 1, 2013·The Journal of the Acoustical Society of America·James J FinneranDorian S Houser
Aug 4, 2007·The Journal of the Acoustical Society of America·Ronald A KasteleinWillem C Verboom
Nov 8, 2012·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Alexander Ya Supin, Paul E Nachtigall
Sep 6, 2014·The Journal of the Acoustical Society of America·Jason MulsowDorian S Houser
Mar 24, 2009·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Stefan HuggenbergerHelmut H A Oelschläger
Oct 3, 2006·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Fernando ListeJuan Manuel Corpa
Sep 10, 2008·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Stefan HuggenbergerHelmut H A Oelschläger
Apr 25, 2013·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Rachel A Racicot, Matthew W Colbert
Mar 7, 2014·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Marina IvančićCynthia R Smith
Dec 3, 2015·The Journal of the Acoustical Society of America·Zhongchang SongPer Berggren
May 2, 2015·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Steven W ThorntonD Ann Pabst
May 1, 2015·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·T Aran MooneyI-Fan Jen
Mar 9, 2018·The Journal of Experimental Biology·Heather N Koopman
Oct 20, 2006·Journal of Morphology·Michael A RauschmannHelmut H A Oelschläger
May 23, 2007·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·C MaxiaP Sirigu
Jul 27, 2007·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Megan F McKennaTed W Cranford
Sep 13, 2013·Journal of Morphology·Marina A PiscitelliRobert E Shadwick
Jun 2, 2017·Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology·Nicole M ThometzTerrie M Williams
Apr 3, 2020·The Journal of the Acoustical Society of America·Chong WeiDarlene R Ketten
Mar 4, 2017·The Journal of the Acoustical Society of America·Michael D Gray, Peter H Rogers
Aug 21, 2015·The Journal of Experimental Biology·Gina L LonatiHeather N Koopman
Feb 25, 2011·The Journal of Experimental Biology·Eric W MontieDavid A Mann
Sep 28, 2013·The Journal of Experimental Biology·John DavenportColm Murphy
Mar 24, 2012·The Journal of Experimental Biology·Laura N KloepperMarlee Breese
Jul 22, 2006·The Journal of Experimental Biology·Sam RidgwayCarl Hoh
Jul 20, 2012·The Journal of Experimental Biology·Heather N Koopman, Andrew J Westgate

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