3 Questions
Which type of muscle cells are not electrically coupled and do not spread contraction from one cell to the next?
Multiunit smooth muscle cells
What are the stimuli for multiunit smooth muscles?
Both autonomic nerves and hormones
Which neurotransmitter binds to its alpha-1 adrenergic receptor on the pupil dilator muscle to cause pupil dilation?
Norepinephrine
Test your knowledge on the regulation of multiunit smooth muscle contraction. Learn about the absence of gap junctions, the role of autonomic nerves and hormones, and the specific action of norepinephrine.
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