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Questions and Answers
What is the volume range of salivary secretion per day?
What is the volume range of salivary secretion per day?
- 1000-1500 ml (correct)
- 500-1000 ml
- 2000-2500 ml
- 1500-2000 ml
During salivary secretion, by how much does the oxygen consumption of the glands increase from resting value?
During salivary secretion, by how much does the oxygen consumption of the glands increase from resting value?
- 3-4 times (correct)
- 2-3 times
- 4-5 times
- 1-2 times
What is the pH range of saliva?
What is the pH range of saliva?
- 6.6-7.1 (correct)
- 5.6-6.1
- 7.1-7.6
- 6.1-6.6
What happens if the pH of saliva becomes alkaline?
What happens if the pH of saliva becomes alkaline?
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Study Notes
Salivary Secretion
- The volume range of salivary secretion per day is variable, but typically ranges from 1-2 liters.
Oxygen Consumption
- During salivary secretion, the oxygen consumption of the glands increases by 10-15 times from the resting value.
pH Range of Saliva
- The pH range of saliva is slightly acidic to neutral, ranging from 6.2 to 7.6.
Effects of Alkaline pH
- If the pH of saliva becomes alkaline, it can lead to the precipitation of calcium and phosphate ions, which can cause the formation of dental calculus (tartar) and increase the risk of dental caries.
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