Ms. Timms explains to her class that stars look different in the sky depending on how close they are to Earth. She takes the cla
ss into the hallway. She gives a flashlight to Maurice and an identical flashlight to Jessica. Maurice shines his flashlight about one meter away, close to the class. Jessica walks far down the hallway and shines her flashlight about twenty meters from the class. What did the class notice about the two lights? A) The far light was wider. B) The closer light appeared (or looked) brighter C) The lights were the same size. D) The lights were different shapes.
Transverse tubules (T tubules) are extensions of the sarcolemma that penetrate into the interior of the muscle transmitting electrical signals to the sarcoplasmic reticulum.
