The Skeletal Muscles Store Calcium Ions in the Terminal Cisternae

Question

The skeletal muscles store calcium ions in the terminal cisternae of the
A)sarcolemma.
B)sarcomere.
C)sarcosome.
D)sarcoplasmic reticulum.
E)sarcoplasm.

Accepted Answer

The terminal cisternae are specialized regions of the sarcoplasmic reticulum, which is a network of tubules that surrounds each myofibril (the functional units of skeletal muscle fibers). The sarcoplasmic reticulum is responsible for storing and releasing calcium ions, which play a crucial role in muscle contraction.