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Questions and Answers
Quel est l'élément organique qui n'est PAS présent dans la salive?
Quel est l'élément organique qui n'est PAS présent dans la salive?
- Pepsine (correct)
- Lysozymes
- Amylase
- Lipase
Quel est le composant principal de la salive?
Quel est le composant principal de la salive?
- Les composants hydro-électrolytiques
- La salive secondaire
- La salive primaire (correct)
- Les composants organiques
Quel est le mécanisme de contrôle de la salivation?
Quel est le mécanisme de contrôle de la salivation?
- Le noyau bulbo-protubérantiel salivaire
- Le système nerveux sympathique (correct)
- Le système nerveux central
- Les réflexes conditionnés
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Study Notes
- Salivation is provided by different glands and varies in flow rate.
- Saliva is made up of organic and hydro-electrolyte components.
- Organic components include amylase, lipase, lysozymes, albumin, IgA, and kallikrein.
- Hydro-electrolytic components include primary saliva and secondary saliva.
- Salivation is controlled by various factors including the salivary bulbo-protuberantial nucleus, conditioned reflexes, and the sympathetic and parasympathetic nervous system.
- Saliva solubilizes and softens food, aids in digestion, and promotes dental and oral hygiene.
- It has anti-infective properties and prevents dental plaque.
- An increase in salivation can be caused by seeing or smelling food, the esophagogastro-salivary reflex, vomiting, and pregnancy.
- Dry syndrome can cause a decrease in salivation.
- The flow of salivation can affect its excretion time and transition from primary to secondary saliva.
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