skeletal muscle fiber

Introduction

Multinucleated contractile muscle cells.

Size: < 10 um - 100 um in diameter, < 1 mM - several cM in length

Fibers consist of sarcoplasm & cross striated myofibrils.

Skeletal muscle fibers may be red, white or intermediate

More general terms

• anatomic structure
• fiber

More specific terms

• red muscle fiber (slow fiber, type 1 fiber)
• white muscle fiber (fast fiber, type 2 fiber)

Additional terms

• skeletal muscle (voluntary muscle)

Components

• myofibril