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Explain Newton's view that planets move due to gravity.How did Newton prove this viewpoint? Did this movement create order or disorder in the heavens? What did Newton have to say about the nature of gravity itself?
Autonomic Nervous System
The part of the nervous system that controls involuntary functions such as heart rate, digestion, and respiratory rate, divided into the sympathetic and parasympathetic systems.
Chemical Synapses
Specialized junctions through which neurons signal to each other and to non-neuronal cells, allowing the transmission of chemical messengers (neurotransmitters).
Electrical Synapses
Direct connections between neural cells allowing for rapid transmission of electrical signals through gap junctions.
Presynaptic Activation
The process by which an action potential in a neuron stimulates the release of neurotransmitters from the presynaptic terminal.
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