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  1. Article ; Online: Anatomical mechanism for protecting the airway in the largest animals on earth.

    Gil, Kelsey N / Vogl, A Wayne / Shadwick, Robert E

    Current biology : CB

    2022  Volume 32, Issue 4, Page(s) 898–903.e1

    Abstract: Separation of respiratory and digestive tracts in the mammalian pharynx is critical for survival. Food must be kept out of the respiratory tract, and air must be directed into the respiratory tract when breathing. ...

    Abstract Separation of respiratory and digestive tracts in the mammalian pharynx is critical for survival. Food must be kept out of the respiratory tract, and air must be directed into the respiratory tract when breathing.
    MeSH term(s) Animals ; Fin Whale ; Larynx ; Mouth ; Trachea ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2022-01-20
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2021.12.040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3208: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article ; Online: Rorqual whale nasal plugs: protecting the respiratory tract against water entry and barotrauma.

    Gil, Kelsey N / Lillie, Margo A / Vogl, A Wayne / Shadwick, Robert E

    The Journal of experimental biology

    2020  Volume 223, Issue Pt 4

    Abstract: The upper respiratory tract of rorquals, lunge-feeding baleen whales, must be protected against water incursion and the risk of barotrauma at depth, where air-filled spaces like the bony nasal cavities may experience high adverse pressure gradients. We ... ...

    Abstract The upper respiratory tract of rorquals, lunge-feeding baleen whales, must be protected against water incursion and the risk of barotrauma at depth, where air-filled spaces like the bony nasal cavities may experience high adverse pressure gradients. We hypothesize these two disparate tasks are accomplished by paired cylindrical nasal plugs that attach on the rostrum and deep inside the nasal cavity. Here, we present evidence that the large size and deep attachment of the plugs is a compromise, allowing them to block the nasal cavities to prevent water entry while also facilitating pressure equilibration between the nasal cavities and ambient hydrostatic pressure (
    MeSH term(s) Animals ; Barotrauma ; Diving/physiology ; Nasal Cavity/anatomy & histology ; Nasal Cavity/physiology ; Whales/anatomy & histology ; Whales/physiology
    Language English
    Publishing date 2020-02-17
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 218085-6
    ISSN 1477-9145 ; 0022-0949
    ISSN (online) 1477-9145
    ISSN 0022-0949
    DOI 10.1242/jeb.219691
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2629: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  3. Article ; Online: Two Levels of Waviness Are Necessary to Package the Highly Extensible Nerves in Rorqual Whales.

    Lillie, Margo A / Vogl, A Wayne / Gil, Kelsey N / Gosline, John M / Shadwick, Robert E

    Current biology : CB

    2017  Volume 27, Issue 5, Page(s) 673–679

    Abstract: Peripheral nerves are susceptible to stretch injury [1-4] and incorporate structural waviness at the level of the axons, fascicles, and nerve trunk to accommodate physiological increases in length [5, 6]. It is unknown whether there are limits to the ... ...

    Abstract Peripheral nerves are susceptible to stretch injury [1-4] and incorporate structural waviness at the level of the axons, fascicles, and nerve trunk to accommodate physiological increases in length [5, 6]. It is unknown whether there are limits to the amount of deformation that waviness can accommodate. In rorqual whales, a sub-group of baleen whales, nerves running through the ventral groove blubber (VGB) associated with the floor of the mouth routinely experience dramatically large deformations. In fact, some of these nerves more than double their length during lunge feeding and then recoil to a short, compressed state after each lunge [7-9]. It is unknown how these nerves have adapted to operate in both extended and recoiled states. Using micro-CT and mechanics, we have discovered that the VGB nerves from fin whales require two levels of waviness to prevent stretch damage in both extended and recoiled states. The entire nerve core itself is highly folded when recoiled and appears buckled. This folding provides slack for extension but unavoidably generates large stretches at the bends that could damage nerve fascicles within the core. The strain at the bends is minimized by the specific waveform adopted by the core [10, 11], while the existing bending strains are accommodated by a second level of waviness in the individual fascicles that avoids stretch of the fascicle itself. Structural hierarchy partitions the waviness between the two length scales, providing a mechanism to maintain total elongation while preventing the stretching of fascicles at the bends when recoiled.
    MeSH term(s) Animals ; Biomechanical Phenomena ; Cadaver ; Feeding Behavior/physiology ; Fin Whale/physiology ; Peripheral Nerves/physiology ; X-Ray Microtomography
    Language English
    Publishing date 2017-02-16
    Publishing country England
    Document type Journal Article
    ZDB-ID 1071731-6
    ISSN 1879-0445 ; 0960-9822
    ISSN (online) 1879-0445
    ISSN 0960-9822
    DOI 10.1016/j.cub.2017.01.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 3208: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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