This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
[{'content': 'The function of the transverse tubule of the skeletal muscle is to? \nSelect and explain. \nA. Transmit the action potential to the sarcoplasmic reticulum, B. Carry ATP from the mitochondria, C. Conduct impulses from the muscle spindle, D. Provide energy for the actin molecule', 'role': 'user'}, {'content': "Answer: A \nExplanation: The function of the transverse tubule (T-tubule) is to transmit the action potential to the sarcoplasmic reticulum. This signal is relayed through the cisternae and to the sarcoplasmic reticulum which releases Ca++. Myosin heads contain ATP and provide energy to form and release crossbridges with the actin filaments. Impulses from the muscle spindles are conducted by groups I and II sensory fibers. Ref: Mescher A.L. (2013). Chapter 10. Muscle Tissue. In A.L. Mescher (Ed),Junqueira's Basic Histology, 13e.", 'role': 'assistant'}]