PHS 4300 Lecture Notes - Lecture 5: Hiatus Hernia, Gastroesophageal Reflux Disease, Stratified Squamous Epithelium

• School: University of Ottawa
• Department: Physiology
• Course: PHS 4300
• Professor: Frank Feiner

Document Summary

Peristalsis is involuntary movement of food bolus: mechanical digestion. Chewing, churning in stomach, segmentation in intestines: chemical digestion. Begins in the mouth and completed in the small intestine: absorption. Movement of food products into blood or lymph. Risk factors include vit b2 or iron-deficient anemia. Other infections: scarlet fever presenting a strawberry tongue. Red bumps are areas of increased vascularization. White lesions are caused by candida albicans: mumps (myxovirus) causes inflammation of parotid glands. Risk of testicular infection in adult males. Salivary gland inflammation: stones, benign tumors, or infections can block gland secretions causing them to swell, swelling usually goes down when salivation is inhibited, must determine reason for blockage. Achalasia: degeneration of esophageal ganglion and atrophy of smooth muscle. Decreased relaxation of ge sphincter after swallowing: dysphagia, vomiting, nausea, risk of pneumonia infection by aspiration of gi contents, diagnose with a barium swallow, treat with botox injection, mechanical dilation, or anticholinergic drugs.