Which of the Following Statements About Excitation- Contraction Coupling in Skeletal

question 113

Multiple Choice

Which of the following statements about excitation- contraction coupling in skeletal muscle is FALSE?

• A)An end- plate potential triggers an action potential on the sarcolemma.
• B)DHP receptors on the T tubules detect changes in voltage and communicate to ryanodine receptors on the sarcoplasmic reticulum to open calcium channels.
• C)Calcium binds to troponin, causing a shift in tropomyosin, thereby exposing the binding sites on actin for myosin.
• D)Calcium ATPases in the sarcoplasmic reticulum are necessary for relaxation of the muscle.
• E)An action potential in the sarcolemma stimulates the opening of voltage- gated calcium channels in the plasma membrane and the sarcoplasmic reticulum.

Recognize the maintenance schedules for fifth wheels based on OEM recommendations.

Comprehend the components and their functions in the coupling process of a tractor and trailer.

Describe the impact of fifth wheel positioning on tractor and trailer performance, including ride comfort and legal weight distribution.

Explain the proper methods of attaching fifth-wheel base plates to truck frames.

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Footbinding

A historical Chinese custom where young girls' feet were tightly bound to alter their shape; considered a sign of beauty and status but also caused severe physical deformities and limitations.