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Wyszukujesz frazę "forelimb" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Responses of the red nucleus neurons to stimulation of the paw pads of forelimbs before and after cerebellar lesions
    Autorzy:
    Tarnecki, R.
    Lupa, K.
    Niechaj, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/69074.pdf
    Data publikacji:
    2001
    Wydawca:
    Polskie Towarzystwo Fizjologiczne
    Tematy:
    stimulation
    cerebellar cortex
    red nucleus neuron
    response pattern
    forelimb
    cerebellar lesion
    Źródło:
    Journal of Physiology and Pharmacology; 2001, 52, 3
    0867-5910
    Pojawia się w:
    Journal of Physiology and Pharmacology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evidence for a sauropod-like metacarpal configuration in stegosaurian dinosaur
    Autorzy:
    Senter, P
    Powiązania:
    https://bibliotekanauki.pl/articles/23329.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    evidence
    paleontology
    sauropod
    metacarpal configuration
    stegosaurian dinosaur
    dinosaur
    Dinosauria
    Ornithischia
    Stegosauria
    forelimb
    functional morphology
    Opis:
    The stegosaurian forelimb is usually portrayed with the metacarpals slanted and distally spread. However, manual manipulation of stegosaurian metacarpals reveals that in that configuration they do not articulate with each other nor with the rest of the forelimb. Rather, they do articulate with each other and with the rest of the forelimb when posed vertically and arranged in a compact, semi−tubular configuration, as in sauropods. This configuration agrees with data from articulated specimens and trackways. As with sauropods, this metacarpal configuration makes retention of phalanges awkward for locomotion and may be functionally related to the vestigiality of the manual phalanges of the outer digits.
    Źródło:
    Acta Palaeontologica Polonica; 2010, 55, 3; 427-432
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Functional morphology and biomechanics of the cynodont Trucidocynodon riograndensis from the Triassic of Southern Brazil: Pectoral girdle and forelimb
    Autorzy:
    de Oliveira, T.V.
    Schultz, C.L.
    Powiązania:
    https://bibliotekanauki.pl/articles/20204.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    functional morphology
    biomechanics
    cynodont
    Trucidocynodon riograndensis
    Cynodontia
    Trucidocynodon
    limb posture
    Carnian
    Triassic
    Brazil
    pectoral girdle
    forelimb
    Opis:
    Non-mammalian cynodonts provide insights on several points about mammalian evolution, such as the postural change and locomotory advances within the group. Unfortunately, complete skeletons of Triassic cynodonts are rather uncommon and where more complete specimens are found they can offer a global vision on some traits not available from partial specimens. This is the case of the cynodont Trucidocynodon riograndensis, from the Triassic of Brazil, that has preserved its forelimbs providing some insights into locomotory properties. The movements between interclavicle and clavicle must have been limited, as such as those occurring between the latter and the scapulocoracoid although the long acromion process of this should have permitted a greater degree of freedom. Some of the more significant movements were those on the shoulder joint, in which the maximum adduction should have been ca. 35º relative to the parasagittal plane and the greater abduction ca. 55º. The maximum adduction occurred when the humerus was in the more retracted position during stride and the variation in the adduction/abduction should have been significant to the limb posture during its recovery stroke. The long olecranon and the distal overlapping between radius and ulna suggest the predominance of simple flexion/extension on the forearm without significant pronation/supination. The poorly preserved hand suggests that Trucidocynodon could have evolved a slight semidigitigrad condition in its forelimbs. All these features give to this cynodont an important role in the evolution of the mammalian locomotory properties indicating that some features, such as the possibility of greater humeral adduction, evolved early in cynodont lineage.
    Źródło:
    Acta Palaeontologica Polonica; 2016, 61, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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