The Resource Motor function of the pharynx, esophagus, and its sphincters, Ravinder Mittal, (electronic resource)

Motor function of the pharynx, esophagus, and its sphincters, Ravinder Mittal, (electronic resource)

Label
Motor function of the pharynx, esophagus, and its sphincters
Title
Motor function of the pharynx, esophagus, and its sphincters
Statement of responsibility
Ravinder Mittal
Creator
Subject
Language
eng
Summary
Deglutition or a swallow begins as a voluntary act in the oral cavity but proceeds autonomously in the pharynx and esophagus. Bilateral sequenced activation and inhibition of more than 25 pairs of muscles of mouth, pharynx, larynx, and esophagus is required during a swallow. A single swallow elicits peristalsis in the pharynx and esophagus along with relaxation of upper and lower esophageal sphincters. Multiple swallows, at closely spaced time intervals, demonstrate deglutitive inhibition; sphincters remain relaxed during the entire period, but only the last swallow elicits peristalsis. Laryngeal inlet closure or airway protection is very important during swallow. Upper part of the esophagus that includes upper esophageal sphincter is composed of skeletal muscles, middle esophagus is composed of a mixture of skeletal and smooth muscles, and lower esophagus, including lower esophageal sphincter, is composed of smooth muscles. Peristalsis progresses in seamless fashion, despite separate control mechanism, from the skeletal to smooth muscle esophagus. The esophagus's circular and longitudinal muscle layers contract synchronously during peristalsis. Sphincters maintain continuous tone; neuromuscular mechanisms for tonic closure in the upper and lower esophageal sphincters are different. Lower esophageal sphincter transient relaxation, belching mechanism, regurgitation, vomiting, and reflux are mediated via the brain stem
Member of
Cataloging source
NLM
http://library.link/vocab/creatorName
Mittal, Ravinder K
Dewey number
612.3
Illustrations
illustrations
Index
no index present
LC call number
QM331
LC item number
.M58 2011eb
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
NLM call number
WI 250
Series statement
Integrated systems physiology,
Series volume
#16
http://library.link/vocab/subjectName
  • Pharynx
  • Pharyngoesophageal sphincter
  • Esophagus
  • Esophagogastric junction
  • Deglutition
  • Esophagus
  • Deglutition
  • Peristalsis
  • Pharynx
Label
Motor function of the pharynx, esophagus, and its sphincters, Ravinder Mittal, (electronic resource)
Instantiates
Publication
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Contents
Introduction -- Central program generator and brain stem -- Pharynx, anatomy, neural innervation, and motor pattern -- Upper esophageal sphincter -- Neuromuscular anatomy of esophagus and lower esophageal sphincter -- Extrinsic innervation: parasympathetic and sympathetic -- Sympathetic/spinal/splanchnic nervous system -- Intrinsic innervations of the LES and esophagus -- Interstitial cells of Cajal -- Recording techniques -- Motor patterns of the esophagus, aboral and oral transport -- Circular muscle contraction -- Deglutitive inhibition and muscle refractoriness -- Peristalsis in the circular and longitudinal muscles of the esophagus -- Neural and myogenic mechanism of peristalsis -- Central mechanism of peristalsis, cortical and brain stem control -- Peripheral mechanisms of peristalsis -- Central versus peripheral mechanism of deglutitive inhibition -- Neural control of longitudinal muscle contraction -- Modulation of primary and secondary peristalsis -- Neural control of lower esophageal sphincter and crural diaphragm -- Lower esophageal sphincter -- Swallow-induced LES relaxation -- Crural diaphragm contribution to EGJ and neural control -- Transient LES relaxation and pharmacological inhibition -- Compliance of the EGJ
Control code
712601896
Dimensions
unknown
Extent
1 online resource (viii, 76 pages)
Form of item
online
Isbn
9781615043347
Isbn Type
(electronic bk.)
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other control number
10.4199/C00027ED1V01Y201103ISP016
Other physical details
illustrations
Specific material designation
remote
System control number
(OCoLC)712601896
Label
Motor function of the pharynx, esophagus, and its sphincters, Ravinder Mittal, (electronic resource)
Publication
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Contents
Introduction -- Central program generator and brain stem -- Pharynx, anatomy, neural innervation, and motor pattern -- Upper esophageal sphincter -- Neuromuscular anatomy of esophagus and lower esophageal sphincter -- Extrinsic innervation: parasympathetic and sympathetic -- Sympathetic/spinal/splanchnic nervous system -- Intrinsic innervations of the LES and esophagus -- Interstitial cells of Cajal -- Recording techniques -- Motor patterns of the esophagus, aboral and oral transport -- Circular muscle contraction -- Deglutitive inhibition and muscle refractoriness -- Peristalsis in the circular and longitudinal muscles of the esophagus -- Neural and myogenic mechanism of peristalsis -- Central mechanism of peristalsis, cortical and brain stem control -- Peripheral mechanisms of peristalsis -- Central versus peripheral mechanism of deglutitive inhibition -- Neural control of longitudinal muscle contraction -- Modulation of primary and secondary peristalsis -- Neural control of lower esophageal sphincter and crural diaphragm -- Lower esophageal sphincter -- Swallow-induced LES relaxation -- Crural diaphragm contribution to EGJ and neural control -- Transient LES relaxation and pharmacological inhibition -- Compliance of the EGJ
Control code
712601896
Dimensions
unknown
Extent
1 online resource (viii, 76 pages)
Form of item
online
Isbn
9781615043347
Isbn Type
(electronic bk.)
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other control number
10.4199/C00027ED1V01Y201103ISP016
Other physical details
illustrations
Specific material designation
remote
System control number
(OCoLC)712601896

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