NURS 3554 Chapter Notes - Chapter 3: Atomoxetine, Nortriptyline, Synapse
Document Summary
Chapter 3 biological basis for understanding psychiatric disorders and treatments. Functions and activities of the brain: maintenance of homeostasis, regulation of autonomic nervous system (ans) and hormones, control of biological drives and behavior, cycle of sleep and wakefulness, circadian rhythms, conscious mental activity, memory, social skills. Cellular composition of the brain: neurons: three types of physiologic functions, respond to stimuli, conduct electrical impulses, release chemical called neurotransmitters. Neuronal action: neurons can release more than one chemical at the same time, neuropeptides. Long-term changes in cells: neurotrophic factors. Synaptic transmission: presynaptic neuron synapse postsynaptic neuron, transmitter destruction. Functions of brainstem: core regulates internal organs and vital functions, hypothalamus basic drives and link between thought and emotion and function of internal organs, brainstem processing center for sensory information. Functions of cerebrum: mental activities, conscious sense of being, emotional status, memory, control of skeletal muscles movement. Magnetic resonance imaging (mri: functional imaging techniques.
