Which of the Following Correctly Lists the Sequence of Structures

question 35

Multiple Choice

Which of the following correctly lists the sequence of structures that action potentials must move through to excite skeletal muscle contraction?

• A)sarcolemma,axon of neuron,T tubules
• B)T tubules,sarcolemma,myofilament
• C)muscle fiber,axon of neuron,myofibrils
• D)axon of neuron,sarcolemma,T tubules
• E)myofibrils,myofilaments,mitochondria

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Definitions:

Femur

The largest and most durable bone in the body, stretching from the hip down to the knee.

Posterior Leg Muscles

Muscles located at the back of the leg that are primarily involved in movement and stabilization of the ankle, foot, and toes.

Extensor Digitorum Longus

The extensor digitorum longus is a muscle in the lower leg that helps to extend the toes and the foot.

Range Of Motion

The full movement potential of a joint, usually its range of flexion and extension; important in assessing flexibility and mobility.