AQA Biol4 Muscle Contraction

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The neurotransmitter used in the relay of an action potential to the muscle fibres
Acetylcholine
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The type of response when more motor units stimulated lead to a greater force of contraction
Graduation
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Name of the end of a motor neurone
Endplate
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An organelle that has distinctive banding due to many microfilaments
Myofibril
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A specialised synapse which occurs at the end of a motor neurone where it meets the muscle fibre
Neuromuscular
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The protein that forms the thick filament in muscle cells
Myosin
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The attachment formed by a myosin head binding to a binding site on an actin filament
Crossbridge
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A complex consisting of three polypeptide chains
Troponin
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Junction between two neurones
Synapse
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Ions that remove tropomyosin from the actin
Calcium
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The chemical that provides energy for muscle contraction
ATP
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Central part of the I band
Z-Line
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Working against each other in a pair
Antagonistic
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A chemical that is released from one presynaptic membrane of one neurone to pass a signal to another neurone
Neurotransmitter
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The span between one Z-Line and the next Z-Line
Sarcomere
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The reticulum that releases ions when an action potential reaches the neuromuscular junction
Sarcoplasmic
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When contraction of the muscle is generated from within the muscle itself
Myogenic
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Rod shaped protein reinforcing the thin filaments
Tropomyosin
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Moves food along the intestine
Peristalsis
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The protein that forms the thin filament in mucle cells
Actin
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Other cards in this set

Card 2

Front

The type of response when more motor units stimulated lead to a greater force of contraction

Back

Graduation

Card 3

Front

Name of the end of a motor neurone

Back

Preview of the front of card 3

Card 4

Front

An organelle that has distinctive banding due to many microfilaments

Back

Preview of the front of card 4

Card 5

Front

A specialised synapse which occurs at the end of a motor neurone where it meets the muscle fibre

Back

Preview of the front of card 5
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