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What mechanisms assist venous return to the heart?
Neurotransmitters
Chemicals that transmit signals across the synaptic gap between neurons in the nervous system.
Norepinephrine
A neurotransmitter and hormone involved in the body's fight or flight response, affecting mood, attention, and stress levels.
Glutamate
An essential neurotransmitter in the brain involved in learning and memory, playing a key role in the excitatory signaling between neurons.
Semicircular Canals
Three fluid-filled tubes in the inner ear responsible for detecting rotational movements, contributing to the sense of balance.
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