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Sam and Marty are having a conversation. Sam says that he just saw a big truck. Marty replies that his father is a doctor. Sam and Marty are engaging in a:
Neurotransmitters
Chemical substances that transmit signals across a synapse from one neuron to another in the brain and nervous system.
Autonomic Nervous System
The part of the peripheral nervous system that controls involuntary functions in the body, such as heart rate, digestion, and respiratory rate.
Spinal Reflexes
Automatic, involuntary movements or actions of the body initiated in the spinal cord without the involvement of the brain.
Somatic Nervous System
The part of the peripheral nervous system that controls voluntary movements of the body and transmits sensory information to the central nervous system.
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