Figure 40-4 Use the Figure to Answer the Corresponding Question(s)

question 57

Multiple Choice

Figure 40-4
Use the figure to answer the corresponding question(s) .
-Which statement about muscle contraction is false?

• A) The sliding filament model was developed by Hugh and Andrew Huxley.
• B) Acetylcholine released into the synaptic cleft stimulates muscle contraction.
• C) During contraction, the muscle length does not change, but the actin and myosin filaments shorten.
• D) Once the T tubules are depolarized, they open Ca²⁺ channels in the sarcoplasmic reticulum.
• E) Cross bridges are formed between myosin and actin during muscle contraction.

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Common Fixed Expenses

Costs that remain constant regardless of the volume of goods produced or sold, including items like lease payments, wages, and coverage fees.