KINS 1223 Lecture Notes - Lecture 23: Autonomic Ganglion, Occipital Condyle, Ventral Root Of Spinal Nerve

• School: Temple University
• Department: Kinesiology
• Course: KINS 1223
• Professor: kyleharris

Document Summary

Receptors monitor inside and outside: evaluating- decision making. Peripheral nervous system: spinal nerves, 31 pairs, 1st cervical. Between occipital condyle and atlas: 8th cervical. Between c7 and t1: spinal nerves. Ventral root- motor: plexus- network of converging and diverging nerve fibers. Cutaneous region of sensation specific spinal nerve: sensory portions. Innervates: smooth muscle of blood vessels, abdominal and thoracic visceral organs, many glands, cardiac muscle of heart. Autonomic nervous system: sympathetic or thoracolumbar. Ventral roots: all thoracic and l1-3: parasympathetic or craniosacral. Cn 3,7,9,10 and ventral roots of s 2,3,4. Preganglionic neuron (cord or brain) to autonomic ganglion to postganglionic neuron to effector organ. Somatic ns: 1 neuron: cns to effector, fibers myelinated, neurotransmitter at effector synapse- ach, nt effect: always excitatory- stimulates contraction. Sympathetic: norepinephrine, widespread in the body. Parasympathetic: ach, single response at effector, synapse close to effector, rest and repair. Has preganglionic neurons of sympathetic division: dorsal horn.