BIOL G220 Exam 2 Review C

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To initiate contractile shortening of the sarcomere, ___ is released from the sarcoplasmic reticulum to remove ___ from the binding sites on the thin filaments

myofibrils are surrounded by saclike organelles simmilar to ER called ______

muscles attach to the relatively immobile point at the ___, and to the relatively mobile point at the ___

Contractile units called _____ shorten when thick and thin filaments slide along one another

muscle fibers contract

A group of muscle fibers that are all innervated by the same motor neuron are called

Muscles are made of different types of ______, as they occupy the _____ level of organization

The transverse tubules and Sarcoplasmic Reticulum are involved in