Associate Degree Nursing Physiology Review
Medulla Oblongata Centers Affect Autonomic Innervation. *Cardio-acceleratory center activates sympathetic neurons. *Cardio-inhibitory center controls parasympathetic neurons. *Receives input from higher centers, monitoring blood pressure and dissolved gas concentrations
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CH 3. Major divisions of the nervous system. SNS/ParaSNS originates as signals in the CNS, which result in physiological arousal/relaxation (CNS to PNS = efferent). Remember that efferent nerves carry impulses away from CNS to PNS nervous tissues - think of "effervescent" bubbling drinks. Afferent nerves carry signals from PNS receptors to the CNS.
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