Results 251 to 260 of about 339,817 (301)
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Architecture of the Human Pterygoid Muscles
Journal of Dental Research, 1995Muscle force is proportional to the physiological cross-sectional area (PCSA), and muscle velocity and excursion are proportional to the fiber length. The length of the sarcomeres is a major determinant of both force and velocity. The goal of this study was to characterize the architecture of the human pterygoid muscles and to evaluate possible ...
van Eijden, T.M.G.J. +2 more
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Postcontraction changes of muscle architecture in human quadriceps muscle
Muscle & Nerve, 2004AbstractMaximal voluntary contraction changes the mechanical properties of skeletal muscle. Using ultrasound, we investigated whether these changes are reflected by changes in muscle architecture in the vastus lateralis muscle of 8 healthy volunteers. The mean pennation angle during the time interval from 3 to 6 min after maximal voluntary contraction (
Konrad, Mahlfeld +2 more
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Incorporation of muscle architecture into the muscle length-tension relationship
Journal of Biomechanics, 1989A mathematical model of the muscle active length-tension relationship has been developed. It integrates the functional basis of different muscle arrangements into a mathematical description of the contractile element. The model is complex enough to represent many of the mechanical and architectural properties of active muscle.
K R, Kaufman, K N, An, E Y, Chao
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Muscle-fibre architecture of the rat medial pterygoid muscle
Archives of Oral Biology, 1987The detailed fibre architecture of the rat medial pterygoid muscle, including the courses and attachment points of muscle fibres, was investigated histologically in 10 micron thick serial sections in the horizontal, coronal and parasagittal planes.
H, Matsumoto, S, Katsura
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Architecture and function in the muscle sarcomere
Current Opinion in Structural Biology, 1997Striated muscle sarcomeres in vertebrates comprise ordered arrays of actin and myosin filaments, organized by an elaborate protein scaffold. Recent innovative work in a number of laboratories has greatly improved our knowledge of these structures, their organization and their interactions.
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Modelling mechanically stable muscle architectures
Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences, 1992Abstract This paper presents a planar architectural model for an activated skeletal muscle, with mechanical equilibrium throughout the muscle belly. The model can predict the shape of the muscle fibres and tendinous sheets as well as the internal pressure distribution in the central longitudinal plane (perpendicular to the tendinous ...
J L, Van Leeuwen, C W, Spoor
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The Architecture of Leg Muscles
1990Each of the four muscles shown in Figure 36.1 (a to d) consists of muscle fascicles (bundles of muscle fibers) connected at either end to tendons, but they show striking differences of architecture. Most authors would describe (a) and (c) as pen- nate, but (b) and (d) as parallel-fibered.
R. McN. Alexander, R. F. Ker
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Clinical Significance of Skeletal Muscle Architecture
Clinical Orthopaedics and Related Research, 2001Skeletal muscle architecture is one of the most important properties that determines a muscle's force and excursion capability. In the current review, basic architectural terms first are reviewed and then specific examples relevant to upper extremity anatomy are presented.
R L, Lieber, J, Fridén
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Architectural differences between the hamstring muscles
Journal of Electromyography and Kinesiology, 2012The purpose of this study was to understand the detailed architectural properties of the human hamstring muscles. The long (BFlh) and short (BFsh) head of biceps femoris, semimembranosus (SM) and semitendinosus (ST) muscles were dissected and removed from their origins in eight cadaveric specimens (age 67.8±4.3 years).
Eleftherios, Kellis +3 more
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Muscle Architecture in the Mystacial Pad of the Rat
The Anatomical Record, 2010AbstractThe vibrissal system of the rat is an example of active tactile sensing, and has recently been used as a prototype in construction of touch‐oriented robots. Active vibrissal exploration and touch are enabled and controlled by musculature of the mystacial pad.
Sebastian, Haidarliu +3 more
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