Cardiac muscle can be distinguished from skeletal muscle because cardiac muscle:
a. Forms muscle fibers with larger diameters than those of skeletal muscle
b. Has 15 to 20 nuclei per muscle fiber (cell)
c. Lacks intercalated disks
d. Lacks striations
e. Possesses a nucleus located in the center of each muscle fiber
ANS: E
Cardiac muscle in a sense resembles smooth muscle more than skeletal muscle, since like smooth muscle it has small cells with centrally located nuclei.
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