Adrenergic nerve fibers and receptors are present in the cavernous trabeculae, and they encompass the deep penile arteries. Noradrenaline is the most important neurotransmitter that controls penile flaccidity and tumescence. [13, 14] Sympathetic contraction is considered mediated by activation of postsynaptic alpha(one)-adrenergic receptors that raise intracellular calcium ranges and ... https://protesthetic-toys.com/