INTEGBI 131 Study Guide - Final Guide: Inferior Mesenteric Artery, Superior Mesenteric Artery, Pelvic Splanchnic Nerves
17 Mar 2016
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Musculocutaneous, median, and ulnar nerves from lateral and medial cords of the brachial. Leprosy = hansen"s disease: caused by infection from the bacteria. Myasthenia gravis disorder of somatic motor system: progressive weakening of the skeletal muscles (cid:13) (cid:13) The ans (autonomic nervous system) is a visceral motor neuron system that innervates: smooth muscle in organs and blood vessels, cardiac muscle, glands. Autonomic motor systems with chain of two motor neurons compared to single somatic motor axon. Autonomic motor system: preganglionic neuron: thinly myelinated, post-ganglionic neuron: unmyelinated, preganglionic and postganglionic neurons synapse in a ganglion. Somatic motor system: axons are well myelinated and conduct impulses more rapidly, have one axon that extends from cns to the muscle. Anatomical differences in sympathetic and parasympathetic divisions: issue from different regions of the cns. Parasympathetic also called the craniosacral division: length of postganglionic axon fibers sympathetic long because ganglia are typically close to cns.
