PSYCH 1101 Study Guide - Midterm Guide: Peripheral Nervous System, Pituitary Gland, Autonomic Nervous System
23 Sep 2017
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Second, neurotransmitters can be destroyed by enzymes in the synapse in a process called enzyme deactivation; specific enzymes break down specific neurotransmitters. Finally, neurotransmitters can bind to the receptor sites called autoreceptors on the presynaptic neurons. Autoreceptors detect how much of a neurotransmitter has been released into a synapse and signal the neuron to stop releasing the neurotransmitter when an excess is present. How drugs mimic neurotransmitters: agonists increase action of a neurotransmitter, antagonists drugs that block the function of a neurotransmitter. Nervous system (a set of nerves that carries involuntary and automatic commands that control blood vessels, body organs, and glands) has two major subdivisions (sympathetic nervous. System a set of nerves that prepares the body for action in challenging or threatening situations/ Parasympathetic nervous system a set of nerves that helps the body return to a normal resting state) The midbrain: the midbrain - the midbrain is important for orientation and movement (tectum and tegmentum)
