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Esophageal ( oesophageal in British English) arteries are a group of arteries from disparate sources supplying the esophagus. The blood supply to the esophagus can roughly be divided into thirds, with anastamoses between each area of supply. More specifically, it can refer to: Esophageal branches of inferior thyroid artery (top third)
- Esophagus - Wikipedia
The upper parts of the esophagus and the upper esophageal...
- Esophageal branches of thoracic part of aorta - Wikipedia
Esophageal branches of thoracic part of aorta. The...
- Esophagus - Wikipedia
- Esophageal Secretion
- Sensory Physiology
- Motor Physiology
The esophageal submucosa contains glands, although there are fewer numbers of glands than in the rest of the gastrointestinal tracts. The esophageal submucosal glands secrete the following substances: water, bicarbonate, mucins, epidermal growth factor, and prostaglandins. Secretions of the esophageal submucosal glands are involved in mucosal clear...
Vagal afferents merging from the esophageal smooth muscle layer and serosa are sensitive to muscle stretch, whereas vagal afferents in the mucosa are sensitive to various stimuli including chemical (acid), thermal (cold or hot), and mechanical intraluminal stimuli.8 In general, vagal afferents do not play a direct role in visceral pain transmission...
Primary and secondary peristalsis
The coordinated motor pattern of the esophagus initiated by the act of swallowing is called primary peristalsis. A rapidly progressing pharyngeal contraction wave transfers the bolus through the relaxed UES into the esophageal body, and a progressive circular contraction begins in the upper esophagus and proceeds distally along the esophageal body to propel the bolus through the relaxed LOS. The mean peak pressures amplitudes are 53 ± 9 mmHg in the proximal esophagus, 35 ± 6 mmHg in the middl...
Deglutitive inhibition.
Studies using animal models demonstrated that esophageal smooth muscle was hyperpolarized before the occurrence of a peristaltic contraction.25–28 The muscle hyperpolarization lasts progressively longer in the distal esophageal segments and is followed by depolarization. Because muscle contraction is inhibited during hyperpolarization, the timing of esophageal peristaltic contractions is influenced by the strength and duration of this inhibition. Because of methodological limitations, electro...
Control of esophageal peristalsis.
Peristalsis in the striated muscle part of the esophagus is entirely dependent on central vagal pathways. It is mediated by sequential excitation of lower motor neurons originated in the nucleus ambiguus through the vagus nerve (Fig. 2).32,33 Control of peristalsis in the smooth muscle part of the esophagus is more complicated. Peristalsis in the thoracic esophagus is mediated by both central and peripheral mechanisms. In contrast to the striated muscle portion, sequential excitation of vagal...
- E. Yazaki, D. Sifrim
- 2012
30. Aug. 2023 · Contents. Anatomy. Sphincters. Blood supply. Arteries. Veins. Innervation. Sources. + Show all. Anatomy. The esophagus is divided into three parts: Cervical which travels through the neck. Thoracic which is located in the thorax, more specifically in the mediastinum. Abdominal which travels past the diaphragm into the abdomen, reaching the stomach.
- Medical Content
- 30 Min.
Arteriae oesophagi. Read more. Description. The arterial supply to the esophagus comes from the esophageal branches that arise from multiple arteries, including the inferior thyroid arteries, thoracic aorta, bronchial arteries, left gastric artery, and left inferior phrenic artery. Complete Anatomy. The world's most advanced 3D anatomy platform.
10. Feb. 2021 · Right view. Abbreviations: a: thyroid inferior artery; b: right bronchial artery; c: esophageal arteries and d: branches from the left gastric artery and inferior phrenic artery. b. Arteries of the esophagus. Left view. a: left superior bronchial artery; b: left inferior bronchial artery; c and d: 7th esophageal arteries from ...
