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A new experimental drug is tested in muscle fibers and it is concluded that it blocks the calcium channels in the sarcoplasmic reticulum. Which of the following are expected consequences of the injection of this drug in skeletal muscles?

A new experimental drug is tested in muscle fibers and it is concluded that it blocks the calcium channels in the sarcoplasmic reticulum. Which of the following are expected consequences of the injection of this drug in skeletal muscles?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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 A new experimental drug is tested in muscle fibers and it is concluded that it blocks the calcium channels in the sarcoplasmic reticulum.

Which of the following are expected consequences of the injection of this drug in skeletal muscles?

[ANIMAL PHYSIOLOGY] A new experimental drug is tested in muscle fibers and it is concluded that it blocks the calcium channels in the sarcoplasmic reticulum. Which of the following are expected consequences of the injection of this drug in skeletal muscles? Select one: O a. The muscle fiber will reach the state of maximum contraction even in the absence of stimulus. O b. Even in the presence acetylcholine in the neuromuscular junction, contraction of the muscle fiber will not occur. c. Tropomyosin will be bound to myosin, preventing the formation of cross-bridges. o d. The motor neuron would not be able to release acetylcholine. e. No action potentials would be conducted down the T tubules.
Transcribed Image Text:[ANIMAL PHYSIOLOGY] A new experimental drug is tested in muscle fibers and it is concluded that it blocks the calcium channels in the sarcoplasmic reticulum. Which of the following are expected consequences of the injection of this drug in skeletal muscles? Select one: O a. The muscle fiber will reach the state of maximum contraction even in the absence of stimulus. O b. Even in the presence acetylcholine in the neuromuscular junction, contraction of the muscle fiber will not occur. c. Tropomyosin will be bound to myosin, preventing the formation of cross-bridges. o d. The motor neuron would not be able to release acetylcholine. e. No action potentials would be conducted down the T tubules.
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