Which of these structures is NOT present in cardiac muscle cells?
a. desmosomes
b. gap junctions
c. smooth sarcoplasmic reticulum
d. terminal cisternae
e. transverse (T) tubules
Answer: D
Which of these structures is NOT present in cardiac muscle cells?
a. desmosomes
b. gap junctions
c. smooth sarcoplasmic reticulum
d. terminal cisternae
e. transverse (T) tubules