Arrange the following events at the Neuromuscular Junction inthe correct sequence:
(1) AChase splits apart ACh
(2) exocytosis of ACh
(3) ligand-gated Na+ channels open in muscle cell
(4) voltage-gated Ca+2 channels open in synaptic knob
(5) Action Potential in MUSCLE cell
(6) activation of Ach Receptor Sites on muscle cell
(7) muscle cell contracts
The correct sequence should read:
A. 1, 3, 2, 4, 6, 5, 7
B. 2, 3, 5, 4, 6, 7, 1
C. 2, 4, 6, 3, 5, 7, 1
D. 2, 6, 3, 5, 4, 7, 1
E. 3, 2, 4, 6, 5, 7, 1
F. 4, 1, 2, 6, 3, 5, 7
G. 4, 1, 6, 3, 5, 2, 7
H. 4, 2, 6, 3, 5, 7, 1
I. 4, 5, 6, 2, 3, 7, 1
J. 5, 2, 6, 3, 4, 7, 1
K. 5, 2, 6, 4, 3, 7, 1
L. 6, 3, 4, 2, 5, 7, 1
M. 6, 7, 5, 4, 3, 1, 2
