Section 5 Regulation of the visceral function by the Nervous System
Section 5 Regulation of the Visceral Function by the Nervous System
I Autonomic Nervous System 1. Basic of the Anatomy
I Autonomic Nervous System 1. Basic of the Anatomy
ANS o We subdivide the ans into the parasympathetic sympathetic, and enteric divisions o The enteric system is essentially an independent nervous system responsible for regulation of digestive functions o The aNS coordinates cardiovascular, respiratory, digestive, excretory and reproductive systems
ANS ⚫ We subdivide the ANS into the parasympathetic, sympathetic, and enteric divisions. ⚫ The enteric system is essentially an independent nervous system responsible for regulation of digestive functions. ⚫ The ANS coordinates cardiovascular, respiratory, digestive, excretory and reproductive systems
Somatic and Autonomic Nervous System Companies, Inc. Permi Spinal nerve Spinal cord Somatic Skeletal muscle motor neuron Spinal nerve Autonomic ganglion Spinal cord Effector organ Preganglionic Postganglionic (e. g, neuron neuron smooth muscle b of colon
Somatic and Autonomic Nervous System
Somatic and autonomic Nervous system Somatic autonomic Skeletal muscle Smooth and cardiac muscle and glands ● Conscious and Unconscious regulation unconscious movement Target tissues stimulated e Skeletal muscle contracts or inhibited o One synapse Two synapses acetylcholine Acetycholine by preganglionic neurons and ACh or norepinephrine by postganglionic neurons
Somatic and Autonomic Nervous System Somatic ⚫ Skeletal muscle ⚫ Conscious and unconscious movement ⚫ Skeletal muscle contracts ⚫ One synapse ⚫ Acetylcholine Autonomic ⚫ Smooth and cardiac muscle and glands ⚫ Unconscious regulation ⚫ Target tissues stimulated or inhibited ⚫ Two synapses ⚫ Acetycholine by preganglionic neurons and ACh or norepinephrine by postganglionic neurons