1) For a “monosynaptic” spinal reflex, which of the elements in the previous que
ID: 94601 • Letter: 1
Question
1) For a “monosynaptic” spinal reflex, which of the elements in the previous question is omitted?
A) Effector B) Interneuron C)Motor Neuron D) Sensor E)Sensory neuron
2) White skeletal muscle fibers
A) Have more mitochrondria than red fiber B) Have more myofibrils " " C) Have more myoglobin " " D) Have more endurance " "
3)Following motoneuron stimulation, what step starts the cycles of sliding filaments?
A) Binding CA++
B) " " ATP
C) " " ADP + Pi
D) " " ACTIN
4) During skeletal muscle contraction, myofibrils shorten because
A) Thin filaments shortern B) Thick filaments shorten C) Ttubules shorten D) Sarcomeres shorten
5) In regards to the relationship between resting muscle fiber length and the tension it can generate
A) Maximal tension can be generated when the thick and thin filament slightly overlap B) do not overlap C) maximally overlap D) The amount of overlap is unimportant.
Explanation / Answer
1)B) Interneuron
2)B) Have more myofibrils
3)A) Binding CA++
4)D) Sarcomeres shorten
5)A) Maximal tension can be generated when the thick and thin filament slightly overlap
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