An overview of the upper esophageal sphincter.

被引：36

作者：

Lang I.M. ^{[1
]}

Shaker R. ^{[1
]}

机构：

[1] Division of Gastroenterology and Hepatology, Medical College of Wisconsin, Milwaukee

来源：

Current Gastroenterology Reports | 2000年 / 2卷 / 3期

关键词：

Recurrent Laryngeal Nerve; Hyoid Bone; Cervical Esophagus; Superior Laryngeal Nerve; Motor Innervation;

D O I：

10.1007/s11894-000-0059-z

中图分类号：

学科分类号：

摘要：

The anatomy and physiology of the upper esophageal sphincter (UES) are complex. Much progress has been made over the past few years in our understanding this important sphincter. The closing muscles of the UES include the inferior pharyngeal sphincter, the cricopharyngeus (CP), and the cervical esophagus. The CP is composed of two parts, which may have different functions. The CP is innervated by the pharyngeal plexus and the recurrent laryngeal nerve. Tone of the UES is probably generated by numerous reflexes rather than by specific tone-generating circuitry. The major tone-generating muscle is the CP, which is highly elastic and produces more active tension the more it is stretched. The UES opens by relaxation of the closing muscles, traction by muscles attached to the hyoid bone and thyroid cartilage, and pulsion of the bolus. The various muscles of the UES behave differently during its many dynamic states, so that similar functions are accomplished by different muscles.

引用

页码：185 / 190

页数：5

共 147 条

[21]

Car A(1986)The histochemical characteristics of the human cricopharyngeus muscle J Anat 146 251-257

[22]

Roman C(1997)Correlation of electrical and contractile activities of the cricopharyngeus muscle in the cat Am J Physiol 273 G470-G479

[23]

Lang IM(1994)Innervation of the larynx, pharynx, amd upper esophageal sphincter of the rat J Comp Neurol 349 129-147

[24]

Sarna SK(1944)The innervation of the pharynx in the rhesus monkey and the formation of the pharyngeal plexus in primates Anat Rec 90 197-208

[25]

Dodds WJ(1964)The motor nerve supply of the cricopharyngeal sphincter Ann Otol Rhinol Laryngol 73 599-617

[26]

Elidan J(1948)Nervous control of the cervical portion of the esophagus Am J Physiol 154 343-357

[27]

Gonen B(1996)The innervation of the human upper esophageal sphincter Dysphagia 11 234-238

[28]

Shochina M(1999)Evidence of recurrent laryngeal nerve contribution in the motor innervation of the human cricipharyngeal muscle Laryngoscope 109 7805-7808

[29]

Gay I(1997)Motor innervation of the cricopharyngeus muscle by the recurrent laryngeal nerve J Appl Physiol 83 89-94

[30]

Van Overbeek JJM(1998)Functional studies of the innervation of the upper esophageal sphincter [abstract] Gastroenterology 114 A783-A783

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