38.下列何者為骨骼肌與心肌的肌膜(sarcolemma)所形成的構造,負責傳遞神經衝動?(A)肌漿網(sarcoplasmic reticulum)(B)T 小管(T-tubule)(C)肌束膜(perimysium)(D)終池(terminal cisternae)