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− | <big><center>[[Alimentary - Anatomy & Physiology|'''BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY''']]</center></big>
| + | #REDIRECT[[:Category:Salivary Glands - Anatomy & Physiology]] |
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− | ==Introduction==
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− | The [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]] is drained by numerous salivary glands. The saliva secreted keeps the mouth moist and facilitates [[Mastication|mastication]] by lubricating the passage of the bolus.
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− | Salivary gands are present in the [[Cheeks - Anatomy & Physiology|cheek]], [[Oral Cavity - Tongue - Anatomy & Physiology|tongue]], [[Lips - Anatomy & Physiology|lips]], [[Oesophagus - Anatomy & Physiology|oesophagus]], [[Soft Palate - Anatomy & Physiology|soft palate]] and [[Pharynx - Anatomy & Physiology|pharynx]] but the major salivary glands are located further away from the [[Oral Cavity Overview - Anatomy & Physiology|oral cavity]] and function through connective ducts.
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− | Saliva provides digestive enzymes, is a route of excretion of substances which accumulate on the [[Tooth Anatomy - Anatomy & Physiology|teeth]] and provides lubricative and also cleansing functions.
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− | Salivary glands can produce a [[Serous Salivary Gland - Anatomy and Physiology|serous]] secretion, a [[Mucous Salivary Gland - Anatomy & Physiology|mucous]] secretion or both.
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− | ==Types of Salivary Glands==
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− | ===Major Salivary Glands===
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− | *[[Parotid]] (glandula parotis)
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− | *[[Mandibular]] (glandula mandibularis)
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− | *[[Sublingual]] (glandula sublinguales)
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− | *[[Zygomatic]] (glandula zygomatica)
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− | ===Minor Salivary Glands===
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− | *[[Labial]]
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− | *[[Lingual]]
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− | *[[Buccal]]
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− | *[[Palatine]]
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− | ==Innervation==
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− | *Sympathetic
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− | **Vasoconstriction occurs
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− | **Flow of saliva is decreased
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− | *Parasympathetic (most important)
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− | **Travel from the brainstem by the facial ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN VII]]) and glossopharyngeal ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN XI]]) then into branches of the trigeminal nerve ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN V]])
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− | **Flow of salivary fluid increases
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− | **Vasodilation occurs
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− | *Main nerves are occulomotor ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN III]]), facial ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN VII]]), glossopharyngeal ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN IX]]) and vagus ([[Nervous System - CNS - Anatomy & Physiology#Innervation - Cranial Nerves|CN X]])
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− | ==Saliva==
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− | *Mainly water
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− | *Amylase for carbohydrate digestion
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− | *Salt- mainly sodium bicarbonate
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− | *Mucin
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− | *Electrolytes
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− | *Antimicrobial agents
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− | *Lingual lipase
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− | ==Species Differences==
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− | ===Equine===
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− | *Produce up to 40L per day
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− | ===Bovine===
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− | *Produce 110-180L per day
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− | ===Porcine===
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− | *Produce up tp 15L per day
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− | ==Links==
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− | [[Oral Cavity - Anatomy & Physiology - Flashcards#Salivary Glands Flashcards|Salivary Glands Flashcards]]
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− | [[Oral Cavity - Salivary Glands|Salivary Glands Pathology]]
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− | <big><center>[[Alimentary - Anatomy & Physiology|'''BACK TO ALIMENTARY - ANATOMY & PHYSIOLOGY''']]</center></big>
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