Question

Як утворюється слюна?

Answer 1

Ответ:

Слиновиділення знаходиться під контролем вегетативної нервової системи. Центри слиновиділення розташовуються в довгастому мозку . Стимуляція парасимпатичних закінчень викликає утворення великої кількості слини з низьким вмістом білка.

Объяснение:

Answer 2

Formation of Saliva

Saliva is a fluid that is produced by the salivary glands in the mouth. It plays an important role in the digestive process and maintaining oral health. The formation of saliva involves several steps.

1. Salivary Glands: The salivary glands are responsible for producing saliva. There are three pairs of major salivary glands: the parotid glands, submandibular glands, and sublingual glands. These glands secrete saliva into the mouth through ducts.

2. Composition of Saliva: Saliva is composed of water, electrolytes, mucus, enzymes, and other substances. The exact composition of saliva can vary depending on factors such as hydration, diet, and overall health.

3. Stimulation of Salivary Glands: The production of saliva is stimulated by various factors, including the presence of food in the mouth, the sense of taste, and the act of chewing. Nerves in the mouth send signals to the salivary glands, triggering the release of saliva.

4. Saliva Production: Once the salivary glands are stimulated, they begin to produce and secrete saliva. The cells in the salivary glands produce and release the components of saliva, which are then transported through the ducts and into the mouth.

5. Functions of Saliva: Saliva serves several important functions in the body. It helps to moisten and lubricate the food, making it easier to chew and swallow. Saliva also contains enzymes, such as amylase, which begin the process of breaking down carbohydrates in the mouth. Additionally, saliva helps to neutralize acids in the mouth, preventing tooth decay and maintaining oral health.

In summary, saliva is formed through the stimulation of the salivary glands, which produce and secrete saliva into the mouth. Saliva plays a crucial role in the digestive process and oral health.