KINE 2011 Chapter Notes - Chapter 4: Sympathetic Ganglion, Adrenal Medulla, Postganglionic Nerve Fibers
29 Nov 2013
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Chapter 4 the peripheral nervous system: sensory, autonomic, somatic. Central nervous system brain, spinal cord (there are no nerves here: there are pathways/tracts/commissures that link the right and left halves of the brain. Peripheral nervous system nerve fibres: connection between the cns and the effectors/receptors located in other parts of the body. Afferent division: from the receptors (pns) to the cns: sensory stimuli, visceral stimuli. Efferent division: from cns to effectors/organs/muscle/glands (pns: somatic nervous system. Motor neurons innervate skeletal muscle cell bodies of these neurons are located in the brainstem and the ventral horn or the spinal cord; neurotransmitter = ach. Effector organs (made up of muscle and gland tissue) skeletal: autonomic nervous system muscle contraction. Sympathetic nervous system (gas) and parasympathetic nervous system (brake) Smooth muscle, cardiac muscle, glands these neurons are located in the gastrointestinal tract: effector organs (made up of muscle and gland tissue) Efferent neuron from cns to pns.
