Sarcolemma,sarcoplasm,and sarcoplasmic reticulum refer to a particular type of cell in our body. Which is this cell and to what parts of that cell do these names refer to?

(N/A) These terms refer to the muscle cell (muscle fiber).
$1$. Sarcolemma: The plasma membrane of the muscle fiber.
$2$. Sarcoplasm: The cytoplasm of the muscle fiber.
$3$. Sarcoplasmic reticulum: The endoplasmic reticulum of the muscle fiber,which serves as a storehouse for $Ca^{++}$ ions.