ANCC PMHNP Exam Prep - Chapter 3 - Neuro

Also known as soma; made up of the nucleus and cytoplasm within the cell membrane: - Answer- Cell body Transmits signals away from the neuron's cell body to connect with other neurons and cells: - Answer- Stem or axon Collect incoming signals from other neurons and send the signal toward the neuron's cell body: - Answer- Dentrites Composed of spinal cord and the brain - Answer- Central nervous system Conveys information from the CNS to skeletal muscles; responsible for voluntary movement - Answer- Somatic nervous system Regulates internal body functions to maintain homeostasis; conveys info from the CNS to smooth muscle, cardiac muscle, and glands; responsible for involuntary movement; divided into the sympathetic nervous system and the parasympathetic nervous system - Answer- Autonomic nervous system The excitatory division; prepares the body for stress (fight or flight); stimulates or increases activity of organs - Answer- Sympathetic nervous system Maintains or restores energy; inhibits or decreases activity of organs - Answer- Parasympathetic nervous system Category of brain tissue i that is the myelinated axons of neurons: - Answer- White matter Composed of nerve cell bodies and dendrites; it is the working area of the brain and contains the synapses or area of neuronal connection - Answer- Gray matter Small shallow grooves in the brain - Answer- Sulci Deeper grooves extending into the brain - Answer- Fissures Raised tissue areas in the brain - Answer- Gyri Largest part of the brain, divided into two halves known as the right and left cerebral hemispheres - Answer- Cerebrum Dominant in most people; controls most right-sided body functions: - Answer- Left hemisphere