Zusammenfassung der Ressource
Frage 1
Frage
Which of these is not a structure of myocytes?
Antworten
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T-tubes
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Sarcolemma
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Sarcoplasmic reticulum
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Lacunae
Frage 2
Frage
The perimysium wraps around a myocyte.
Frage 3
Frage
A nerve cells innervates from the distal end of a muscle so as to innervate the entire area of the muscle.
Frage 4
Frage
Choose the correct statements about the NMJ.
Antworten
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The axon coming to the NMJ is commonly unmyelinated.
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The NMJ can have multiple motor end plates.
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The synaptic cleft utilises chemical transmission methods.
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A NMJ endplate always situates beside the nucleus of the myocite.
Frage 5
Frage
[blank_start]Ca++[blank_end] and [blank_start]ATP[blank_end] allow the myosin and actin [blank_start]microfilaments[blank_end] to interdigitate without losing any of their [blank_start]length[blank_end].
Antworten
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Ca++
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Na+
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ATP
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K+
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microfilaments
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myofilaments
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length
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ionic mass
Frage 6
Frage
Choose the correct components of the motor unit:
Frage 7
Frage
Myasthenia gravis is a neuromuscular disease which blocks the ACh receptors, meaning signals from the motor neuron do not reach the NMJ and muscle.
Frage 8
Frage
Muscle fibres display no intermediate activation, it is all or none.
Frage 9
Frage
Which of these does not effect force of contraction?
Antworten
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Size of motor units
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Number of motor units
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Rate of firing
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Neurotransmitter used
Frage 10
Frage
Bones act as levers which can primarily...
(Choose all correct.)
Frage 11
Frage
A student lifts a textbook. Which action is this?
Antworten
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Concentric
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Isometric
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Eccentric
Frage 12
Frage
Which statement best describes isometric muscle action.
Antworten
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The muscle is active and develops tension, but does not move.
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The muscle is active and develops tension, keeping a constant length and constant joint position.
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The muscle is inactive but developing tension, keeping a constant length and constant joint position.
Frage 13
Frage
If a muscle is active, developing tension, and lengthening, it is:
Antworten
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Eccentric
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Concentric
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Isometric
Frage 14
Frage
You stand with your weight on your left leg. What muscle role is the quadriceps taking?
Antworten
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Agonist
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Neutraliser
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Antagonist
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Stabiliser