We don't have fall, but I start in early October and do put out some Halloween stuff with fall. After Halloween I take that stuff out and leave the fall until I put out Christmas. Like Bookmark August 14, 2008 at 2:14PM.
antagonistic muscle - (physiology) a muscle that opposes the action of another; the biceps and triceps are antagonistic muscles. muscle, musculus-one of the contractile organs of the body. agonist-a muscle that contracts while another relaxes; when bending the elbow the biceps are the agonist.ntagonistic muscle - (physiology) a muscle that opposes the action of another; the biceps and triceps are antagonistic muscles. muscle, musculus-one of the contractile organs of the body. agonist-a muscle that contracts while another relaxes; when bending the elbow the biceps are the agonist.
Agonists and Antagonists. Agonists are chemicals that mimic the action of a particular neurotransmitter. They bind to receptors and generate postsynaptic potentials. Antagonists are chemicals that block the action of a particular neurotransmitter. They bind to receptors but canât produce postsynaptic potentials.Because they occupy the receptor site, they prevent neurotransmitters from acting.eurons, Hormones, and the Brain. 1  The Nervous System. 2  Neurons: Cells of the Nervous System. 3  Neurotransmitters. 4  Studying the Brain. 5  Structure and Functions of the Brain. 6  The Endocrine System. 7  Quick Review. 8  Review Questions. 9  Neurons, Hormones, and the Brain Quiz. 10  How to Cite This SparkNote.