An elaborate and specialized network of membranes in skeletal muscle cells that function in calcium storage is the ________.
A) sarcolemma
B) mitochondria
C) intermediate filament network
D) myofibrillar network
E) sarcoplasmic reticulum

Question

Quizplus · Accepted Answer

The sarcoplasmic reticulum is a specialized network of membranes within skeletal muscle cells that functions in calcium storage. It surrounds the myofibrils, which are responsible for muscle contraction, and releases calcium ions into the muscle fiber when it receives a signal from the motor neuron. This release of calcium ions triggers the contraction of the muscle fiber.

An Elaborate and Specialized Network of Membranes in Skeletal Muscle