title: Neural regulation of muscarinic receptors in chick expansor secundariorum muscle.
mesh_terms: D000320:Adrenergic Fibers / Q000502:physiology*; D000367:Age Factors; D000818:Animals; D002645:Chickens; D009121:Muscle Denervation; D009130:Muscle, Smooth / Q000378:metabolism; D011950:Receptors, Cholinergic / Q000378:metabolism*; D011976:Receptors, Muscarinic / Q000378:metabolism*
chemical_list: D011950:Receptors, Cholinergic; D011976:Receptors, Muscarinic