47. Muscle Systems
Musculoskeletal System
Multiple Choice
Multiple ChoiceWhat do all muscle tissues have in common?
A
The individual cells are joined by intercalated discs.
B
The basic contractile unit is the sarcomere.
C
They have transverse tubules along which the action potential travels before it stimulates the release of calcium from the endoplasmic reticulum.
D
The binding site for calcium is located on the troponin complex.
E
Calcium must enter the cytosol before contraction can occur.
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