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Explain the types of alimentary glands and the stimuli that activate secretion.
Explain the types of alimentary glands and the stimuli that activate secretion.
Alimentary glands can be classified into serous, mucous, and mixed glands. The stimuli that activate secretion include nervous stimuli, hormonal stimuli, and local stimuli such as mechanical and chemical irritation of the mucosa.
Describe the stages of saliva secretion and the regulation of salivary secretion.
Describe the stages of saliva secretion and the regulation of salivary secretion.
The stages of saliva secretion include the acini stage and the salivary duct stage. Salivary secretion is regulated by both neural and humoral mechanisms, with parasympathetic stimulation increasing saliva production and sympathetic stimulation decreasing it.
Discuss the secretions and control of gastric acid secretion.
Discuss the secretions and control of gastric acid secretion.
Gastric acid secretion is primarily controlled by the hormone gastrin, as well as histamine and acetylcholine. Parietal cells are responsible for the secretion of gastric acid, and its release is regulated by various stimuli including neural and hormonal factors.
Explain the functions of pancreatic enzymes and the secretion of bicarbonate and water by the pancreas.
Explain the functions of pancreatic enzymes and the secretion of bicarbonate and water by the pancreas.
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What are the different types of salivary glands and how does saliva differ from plasma?
What are the different types of salivary glands and how does saliva differ from plasma?
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