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Salivary Glands Overview - Anatomy & Physiology (view source)
Revision as of 16:58, 7 November 2022
, 16:58, 7 November 2022→Webinars
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==Introduction==
==Introduction==
[[File:Salivary glands.jpg|500px|right|thumb|Dog salivary glands]]
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.
Salivary glands are present in the [[Cheeks|cheek]], [[Tongue - Anatomy & Physiology|tongue]], [[Lips|lips]], [[Oesophagus - Anatomy & Physiology|oesophagus]], [[Soft Palate|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.
Saliva provides digestive enzymes, is a route of excretion of substances which accumulate on the [[:Category:Teeth - Anatomy & Physiology|teeth]] and provides lubricative and also cleansing functions. Salivary glands can produce a [[Serous Salivary Gland - Anatomy & Physiology|serous]] secretion, a [[Mucous Salivary Gland - Anatomy & Physiology|mucous]] secretion or both.
==Types of Salivary Glands==
===Major Salivary Glands===
===Major Salivary Glands===
[[Parotid Gland - Anatomy & Physiology|Parotid]] (glandula parotis), [[Mandibular Gland - Anatomy & Physiology|Mandibular]] (glandula mandibularis), [[Sublingual Gland - Anatomy & Physiology|Sublingual]] (glandula sublinguales) and [[Zygomatic Gland - Anatomy & Physiology|Zygomatic]] (glandula zygomatica).
===Minor Salivary Glands===
===Minor Salivary Glands===
[[Labial Gland - Anatomy & Physiology|Labial]], [[Lingual Gland - Anatomy & Physiology|Lingual]], [[Buccal Gland - Anatomy & Physiology|Buccal]] and [[Palatine Gland - Anatomy & Physiology|Palatine]].
==Innervation==
==Innervation==
The salivary glands are innervated by '''sympathetic'''- Vasoconstriction occurs and the flow of saliva is decreased.
The salivary glands are also innervated by '''parasympathetic''' (most important)- They travel from the brainstem by the facial ([[Cranial Nerves - Anatomy & Physiology|CN VII]]) and glossopharyngeal ([[Cranial Nerves - Anatomy & Physiology|CN IX]]) then into branches of the trigeminal nerve ([[Cranial Nerves - Anatomy & Physiology|CN V]]). The flow of salivary fluid increases and vasodilation occurs.
The main nerves are the '''occulomotor''' ([[Cranial Nerves - Anatomy & Physiology|CN III]]), '''facial''' ([[Cranial Nerves - Anatomy & Physiology|CN VII]]), '''glossopharyngeal''' ([[Cranial Nerves - Anatomy & Physiology|CN IX]]) and '''vagus''' ([[Cranial Nerves - Anatomy & Physiology|CN X]]).
==Saliva==
==Saliva==
Saliva is mainly water and contains amylase for carbohydrate digestion, salt- mainly sodium bicarbonate, mucin, electrolytes, antimicrobial agents and lingual lipase.
==Species Differences==
[[Image:Salivary Glands of Different Species.jpg|thumb|right|250px|Salivary Glands of cow, horse, pig and dog - Copyright prof. Pat Mccarthy]]
===Equine===
===Equine===
Produce up to 40L per day.
===Bovine===
===Bovine===
Produce 110-180L per day.
===Porcine===
===Porcine===
Produce up to 15L per day.
==Links==
==Links==
[[:Category:Salivary Glands - Pathology|Salivary Glands Pathology]]
'''Click here for information on [[:Category:Salivary Glands - Pathology|Salivary Glands Pathology]]'''
{{Template:Learning
|flashcards= [[Salivary Gland Anatomy & Physiology Flashcards]]
|powerpoints= [[Oral Cavity Histology resource|Oral Cavity Histology, see part 2 for salivary glands]]
|dragster = [[Oral Cavity Histology Resource (II)|Salivary Glands Histology Activity]]
|videos = [[Video: Lateral surface of the head of the dog potcast|Lateral surface of the head of the dog potcast]]<br>[[Video: Lateral surface and sagittal section of the head of a sheep|Lateral surface and sagittal section of the head of a sheep]]<br>[[Video: Lateral surface of the head of the dog potcast 4|Lateral surface of the head of the dog potcast 4]]<br>[[Video: Lateral surface of the head of the dog potcast 6|Lateral surface of the head of the dog potcast 6]]
|Vetstream = [https://www.vetstream.com/canis/search?s=salivary Salivary Gland diseases]
}}
==Webinars==
<rss max="10" highlight="none">https://www.thewebinarvet.com/gastroenterology-and-nutrition/webinars/feed</rss>
[[Category:Salivary Glands - Anatomy & Physiology]]
[[Category:Salivary Glands - Anatomy & Physiology]]
[[Category:A&P Done]]