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Jitter
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Space-time diagram
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Internuptial
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Social network
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Fly
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Type III star population
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Web-footed bird
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Stirling formula
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Feldspars
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Linux
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Chikungunya virus
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AB Label
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Glucose-6-phosphate
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Codec
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Banya
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Non-essential amino acids
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Enuresis
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Ramsar Convention
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Hydrogen sulphide
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Cytoskeleton
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Sulphide body
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Mimas
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Archaeopteryx
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Foreshore
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Ebb
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Symmetric cryptography
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Dreikanter
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Very high energy performance
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Pixel
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Concomitant
Cardiac muscle
The myocardium or cardiac muscle is one of the striated muscles of the human body.
However it is relatively unusual as it contracts rhythmically and involuntarily (unlike skeletal striated muscles).
The myocardium is composed of specialist cardiac muscle cells, cardiac myocytes, which are unable to remain contracted for long periods of time.
The myocardium is the muscle that enables the heart to beat. © Patrick Lynch / Licence Creative Commons
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