Functions Of Mouth Flashcards
Two cell types found in salivary glands
Acinar and ductal cells
What do ancinar cells do
Produce enzymes
What does a ductal cell do?
Produces mucous and secreted water
Three functions of saliva
Lubrication
Hydration
Cytoprotection
What give saliva immune function
IgA antibodies
Lactoferrin
Lysozyme
Which nerve stimulates secretion by the parotid gland
IX glosspharyngeal
Describe the oral preparatory phase?
Food is manipulated and masticated in the mouth to a consistency that can be swallowed
Describes the oral phase
Tongue propels food posteriorly until pharyngeal swallow is triggered
Describe the pharyngeal phase
Bolus is transported through pharynx
Coordinated closure of glottis by epiglottis
Cessation of breathing
Relaxation of upper oesophageal sphincter
Oesophageal phase?
Oesophageal peristalsis carries bolus through the oesophagus
Name the layer of the oesophagus
Mucosa
Inner circle
Outer longitudinal
Causes of GORD
Obesity Hutus hernia Drugs Pregnancy Zollinger Ellison syndrome
Three options for GORD treatment
Conservative
Medical
Surgery
Describe the change to cells of the oesophagus with Barrett’s metaplasia
Stratified squamous to simple columnar
What causes alchalasia
Loss of myenteric plexus at lower oesophageal sphincter
