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Structure of a Skeletal Muscle

9. Muscle Tissue / Structure of a Skeletal Muscle / Problem 7

Which of the following accurately describes the structure of gap junctions in cardiac muscle cells?

A

Membrane pores between cells formed by lipids

B

Protein channels connecting the cytoplasm of adjacent cells

C

Small vesicles responsible for the transfer of ions

D

Extracellular matrix fibers linking neighboring cells

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