Cardiac muscle cells

a. do not contract by a sliding filament
mechanism.
b. are similar to those of smooth muscle in
being nonstriated.
c. have fewer mitochondria than skeletal
muscle cells do.
d. possess numerous gap junctions on their
sides, favoring rapid spread of excitation.
e. have intercalated disks with tight junctions
at their branching ends


D

Biology & Microbiology

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