Question 1
Smooth muscle cells do not have which protein(s)?
◦ troponin only
◦ tropomyosin only
◦ actin only
◦ myosin only
◦ troponin and tropomyosin
Question 2
Which is NOT a property of single-unit smooth muscles?
◦ Only some of the smooth muscle cells are associated with autonomic neuron axon terminals.
◦ Smooth muscle cells are connected by gap junctions.
◦ Their contraction occurs in a coordinated manner.
◦ Each cell functions independent of its neighbor.
◦ Electrical responses travel directly between cells.