Waht controls the smooth muscle in the ileum
The activity of smooth muscles in ileum is controlled by the activity of the enteric nervous system (ENS).
What do the parasympathetic nerves act on in ileum?
Parasympathetic nerves generally cause increased contraction through the action of ACh acting onmuscarinic M3 receptors
What do the sympathetic snerves act on in the ileum?
sympathetic stimulation generally causes relaxation through the action of NA on adrenergic beta receptors
What is the structure of the smooth muscle in the ileum
In the gut, the muscle cells are organized into dense sheets or bands. Between individual cells are nexuses (gap junctions) – low resistance pathways which allow coupling of electrical activity between cells – therefore, a number of cells can function as a single unit
Waht is the resting potential for smooth muscle
Rather than one stable value, the resting potential of smoothmusclestends to oscillate from approximately -60 to -40 mV