Topic 7 - Muscle power

actin
one of the two proteins that bring about contraction of muscle fibres
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Antagonistic
work in opposition to each other e.g biceps and triceps in the arm
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ATP
Energy currency - of most cells - consists of adenine. ribose and three phosphate groups
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Calcium ions
initiate the muscle contraction process by moving tropomyosin = ATP hydrolyse
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Cardiac muscle
muscle that makes up the wall of the heart produced heartbeat
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Energy continuum
the interaction of the three energy systems to provide energy to resynthesis ATP
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Myofibrils
thin filaments in muscles in bundles which brings about contraction
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Myosin
thicker of the two types of protein filaments that bring about contraction
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Sarcoplasmic reticulum
the specialised endoplasmic reticulum or cardiac muscle and skeletal muscle that functions especially as a storage and release area for calcium
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Skeletal muscle
muscle attached to the skeleton which brings about movement of bones
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Slow skeletal muscle fibres
muscle fibres that contract at about half the speed of fast skeletal muscle fibres
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Smooth muscle
muscle tissue in which the contractile fibrils are not highly orders, occurring in the gut and other internal organs ans not under voluntary control
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Sarcomere
a structural unit of a myofibril in striated muscles
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Tropomyosin
a thin protein that is involed in muscle contraction
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Troposin
a thin protein that is involed in muscle contraction
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Fast skeletal muscle
muscle fibres that can produce ATP very quickly via gylcolysis
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neuromuscular junction
junction between a nerve cell and muscle
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creatine kinase
an enzyme that catalyses the formation of cyclic AMP from ATP
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t -tubule
tubule running through the sacromere
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Phosphocreatine
energy- rich compound similar to ATP
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Other cards in this set

Card 2

Front

work in opposition to each other e.g biceps and triceps in the arm

Back

Antagonistic

Card 3

Front

Energy currency - of most cells - consists of adenine. ribose and three phosphate groups

Back

Preview of the back of card 3

Card 4

Front

initiate the muscle contraction process by moving tropomyosin = ATP hydrolyse

Back

Preview of the back of card 4

Card 5

Front

muscle that makes up the wall of the heart produced heartbeat

Back

Preview of the back of card 5
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