Lab+4_Neurophysiology+TA+Presentation

Lab+4_Neurophysiology+TA+Presentation - Lab 4:...

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Lab 4: Neurophysiology TA: Renea Faulknor Email: rfaulkno@eden.rutgers.edu
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The Nervous System Central Nervous System (CNS) Contains the brain and spinal cord Critical structures needed for body function and regulation (breathing, HR, pulse, eating, etc.) Peripheral Nervous System (PNS) Somatic Nervous System (SNS-Voluntary) Cerebral cortex is the conscious area of the brain Autonomic Nervous System (ANS-Involuntary)
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Autonomic Nervous System (ANS) Sympathetic Norepinephrine Released by sympathetic stimulus Increases the heart rate Parasympathetic Acetylcholine Released by parasympathetic stimulus Diminishes heart rate ANS modulates cardiovascular system Heart rates are modulated by Para- and Sympa- systems Sympathetic and parasympathetic activities occurs concurrently Figure 5 in manual
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Heart Rate Variability The variation over time of the period between consecutive heartbeats Physiology factors affect variation in normal heart rhythm Demonstrates interplay between sympa- and parasym- nervous system Increased sympathetic activity decreases HRV Increased parasympathetic activity increases HRV
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Lab+4_Neurophysiology+TA+Presentation - Lab 4:...

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