When a motor unit is stimulated, all of its innervated muscle fibers fully contract due to
A . the size principle.
B . the principle of selective recruitment.
C . the all-or-none law.
D . muscle tetanus.
Answer: C
When a motor unit is stimulated, all of its innervated muscle fibers fully contract due to
A . the size principle.
B . the principle of selective recruitment.
C . the all-or-none law.
D . muscle tetanus.
Answer: C