15.3 Parasympathetic Division

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10 Terms

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parasympathetic division fxns

  • rest and digest

  • craniosacral division

  • maintain homeostasis at rest

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parasymp. division ganglia found in two types of locations

  • terminal ganglia

  • intramural ganglia

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terminal ganglia

close to the effector

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intramural ganglia

within wall of effector

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cranial components of parasympathetic division

  • Oculomotor Nerve (CN III)

  • Facial Nerve (CN VII)

  • Glossopharyngeal Nerve (CN IX)

  • Vagus Nerve (CN X)

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Oculomotor Nerve (CN III)

  • preganglionic neurons: midbrain

  • autonomic ganglia: ciliary ganglion

  • effectors: eye, pupils contricting

<ul><li><p>preganglionic neurons: <strong>midbrain</strong></p></li><li><p>autonomic ganglia: <strong>ciliary ganglion</strong></p></li><li><p>effectors: <strong>eye</strong>, pupils contricting</p></li></ul><p></p>
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Facial Nerve (CN VII)

  • preganglionic neurons: pons

  • autonomic ganglia: pterygopalatine ganglion and submandibular ganglion

  • effectors: lacrimal glands, nasal glands, oral glands, palate submandibular and sublingual salivary glands

<ul><li><p>preganglionic neurons: <strong>pons</strong></p></li><li><p>autonomic ganglia: <strong>pterygopalatine ganglion </strong>and <strong>submandibular ganglion</strong></p></li><li><p>effectors: <strong>lacrimal </strong>glands<strong>, nasal </strong>glands<strong>, oral </strong>glands<strong>, </strong>palate submandibular and sublingual<strong> salivary glands</strong></p></li></ul><p></p>
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Glossopharyngeal Nerve (CN IX)

  • preganglionic neurons: medulla oblongata

  • autonomic ganglia: otic ganglion

  • effectors: parotid salivary glands

<ul><li><p>preganglionic neurons: <strong>medulla oblongata</strong></p></li><li><p>autonomic ganglia: <strong>otic ganglion</strong></p></li><li><p>effectors: <strong>parotid salivary glands</strong></p></li></ul><p></p>
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Vagus Nerve (CN X)

  • preganglionic neurons: medulla oblongata

  • autonomic ganglia: terminal and intramural oblongata

  • effectors: thoracic organs and most abdominal organs; slowing heart rate, constricting lung bronchioles, increasing digestive secretions, storing carbs

<ul><li><p>preganglionic neurons: <strong>medulla oblongata</strong></p></li><li><p>autonomic ganglia: <strong>terminal and intramural oblongata</strong></p></li><li><p>effectors: <strong>thoracic organs</strong> and most <strong>abdominal organs; slowing heart rate</strong>, <strong>constricting </strong>lung bronchioles, increasing <strong>digestive secretions</strong>, storing <strong>carbs</strong></p></li></ul><p></p>
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pelvic splanchnic nerves

  • preganglionic neurons: lateral gray regions of S2-S4 sacral region of spinal cord

  • autonomic ganglia: terminal and intramural oblongata

  • effectors: some abdominal and most pelvic organs; urination, erections

<ul><li><p>preganglionic neurons: lateral gray regions of <strong>S2-S4 sacral region of spinal cord</strong></p></li><li><p>autonomic ganglia: <strong>terminal and intramural oblongata</strong></p></li><li><p>effectors: <strong>some abdominal and most pelvic organs; urination</strong>, <strong>erections</strong></p></li></ul><p></p>