揚州大学Chapter 10. Nervous SystemAll figures are from internet, textbooks and papers, all rights reserved to the originalauthors
Chapter 10. Nervous System All figures are from internet, textbooks and papers, all rights reserved to the original authors
ParietalCeritralobesulcusOutlineOocipitalotyOverviewoftheNervousSystemaStructure.andFunctionofNeuronsemoSynapsesControl of BodyMovementSection DSpintrmsrootDorstAutonomic Nervous Systemlerv Higher Function of Nervous SystemVert
Outline • Overview of the Nervous System • Structure and Function of Neurons • Synapses • Control of Body Movement • Section D Autonomic Nervous System • Higher Function of Nervous System
Overview of the Nervous SystemPNSCNSBrainMCAT-Review.orgSensorSensory (afferent)Spinal cordSomatic/visceral/specialsensoryEffectorMotor(efferent)SomaticSkeletalMusclesSympatheticInvoluntaryAutonomicMusclesandOrgansParasympatheticEntericmcat-review.org
Overview of the Nervous System mcat-review.org Somatic/visceral/special sensory Enteric
Comparison of Autonomic and Somatic Nervous SystemSomatieAutonomicConscious orvolun-Functionswithout conscious awareness(involuntary)taryregulationFibersdonotsynapseFibers synapse once at a ganglion afterafterthey leavethetheyleavethe CNs (two-neuronchain).CNS (single neuronMotor control.fromCNStoeffectororgan).Innervates skeletalInnervates smoothmuscle,cardiacmus-musclefibers,alwayscle,and glands: either stimulates orinhibitsstimulatory01.edu-cdn.com
Comparison of Autonomic and Somatic Nervous System 01.edu-cdn.com
The Autonomic Nervous SystemANS, part of the peripheral nervous system that acts as acontrol system,controls visceralfunctions- a two-neuron pathway: preganglionic/postganglionic-senses viscera and skin signals and transmitthe signals into brainandspinalcord- preganglionic neurons: cell body in CNS while synapse at PNS(ganglion)- postganglionic neurons: terminates on effector organsTwo subsystems: sensory (afferent) and motor (efferent)Canbedividedinto theparasympatheticnervous system(PSNS) and sympathetic nervous system (SNS)
The Autonomic Nervous System • ANS, part of the peripheral nervous system that acts as a control system, controls visceral functions - a two-neuron pathway: preganglionic/postganglionic - senses viscera and skin signals and transmit the signals into brain and spinal cord - preganglionic neurons: cell body in CNS while synapse at PNS (ganglion) - postganglionic neurons: terminates on effector organs • Two subsystems: sensory (afferent) and motor (efferent) • Can be divided into the parasympathetic nervous system (PSNS) and sympathetic nervous system (SNS)