During muscle contraction, the _____ of myofibrils contract and the _____ move closer together due to the movement of myosin thick filaments along actin thin filaments.
A) Z disks; A bands
B) A bands; M lines
C) I bands; Z disks
D) I bands; M lines
E) M lines; I bands

Question

Quizplus · Accepted Answer

During muscle contraction, the I bands of myofibrils contract and the Z disks move closer together due to the movement of myosin thick filaments along actin thin filaments.

During Muscle Contraction, the _____ of Myofibrils Contract and the _____

During Muscle Contraction, the _ of Myofibrils Contract and the _