Visceral motor system

MarynaKornieieva 476 views 21 slides Aug 27, 2018
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About This Presentation

Neuroanatomy


Slide Content

Visceral Motor System

Functional Divisions

VMS 2-neuronal chain 1 2 1 2 Sympathetic chain: Parasympathetic chain:

Sympathetic Efferents

Parasympathetic Efferents

Edinger-Westphal nucleus III

Dorsal motor nucleus of vagus

Nucleus ambiguus

Sacral Level of SC

Ongoing coordination of visceral motor function

Visceral Afferents

Visceral Pain Pathway

Referred Pain

A Central Autonomic Network

Hypothalamus Anterior commissure Optic chiasm Mammillary bodies

Hypothalamus regulates five main functions: Blood pressure and electrolyte balance /drinking, salt appetite, blood osmolarity , vasomotor tone/ 2. Body temperature /thermogenesis, seeking warmer/cooler environment/ 3. Energy metabolism /feeding, digestion, metabolic rate/ 4. Reproductive activity /mating, pregnancy, lactation/ 5. Emergency responses / distribution of blood flow, stress hormones, immunological response/

Hypothalamus

Nuclei of Hypothalamus Anterior hypothalamus Anterior-to-medial hypothalamus Medial hypothalamus Posterior hypothalamus

Horner’s Syndrome 1. - Drooping of eyelid (ptosis) 2. - Ipsilateral pupillary constriction ( miosis ) 3. - Apparent sinking of eyeball ( enophthalmos ) 1 3 2

Micturition
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