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Questions and Answers
Facial nerve (VII) gives off ________.
chorda tympani
The sense of taste to the caudal third of the tongue is carried by the ________ nerve.
glossopharyngeal
Trigeminal nerve gives off ________ nerve, which gives off lingual nerve.
mandibular
The motor innervation to the intrinsic and extrinsic lingual muscles is carried by ________ nerve (XII).
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Major salivary glands are located some distance from the oral cavity and empty their secretion via ________ duct.
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Match the salivary gland with its location:
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Match the description with the sublingual salivary glands:
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Match the features with the mandibular salivary gland duct anatomy:
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Match the structures with their functions in oral cavity:
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Match the terms with their meanings:
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Match the anatomy with their description in relation to oral cavity:
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Match the salivary gland with its location:
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Match the salivary gland with its duct anatomy type:
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Match the salivary gland secretion type with the description:
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Match the salivary gland with its function:
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Match the salivary gland with its specific location on the face or mouth:
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Match the salivary gland with its classification based on size:
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Match the following descriptions with the correct salivary gland: 1) Located close to the angle of the jaw 2) Single large duct, covered by parotid gland 3) Passes ventral to the mucosa of the floor of the oral cavity
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Match the following statements with the correct anatomy of the parotid duct: 1) Ventral to the auricular cartilage (ear) 2) Major collecting ducts eventually join forming a single duct 3) Opens into the buccal vestibule
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Match the following features with the correct anatomy of the mandibular salivary gland duct: 1) Passes over the lateral surface of the masseter muscle in carnivores and small ruminants 2) Passes medial to the angle of the jaw and emerges at the rostral border of the masseter muscle in horse, ox, and pig
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Match the following descriptions with the correct anatomy of the sublingual salivary gland: 1) Consists of two glands on either side of the tongue 2) Produces a serous-mucoid secretion dominated by the mucous part 3) Diffuse minor gland (polyostomatic)
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Match the following functions with the correct anatomy: 1) Function near the sublingual caruncle and alternates between the frenulum 2) Absent in horses 3) Produces a serous-mucoid secretion dominated by mucous part
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Study Notes
Salivary Glands
- Paired organs that secrete saliva via their ducts into the oral cavity
- Saliva is important for preparation of food for swallowing by lubrication and chemical digestion
- Classified by:
- Size
- Major or minor
- Duct length (short or long)
- Secretion (serous, mucus, or both)
Minor Salivary Glands
- Present in the mucosa of:
- Lips
- Cheeks
- Tongue
- Palate
- Sublingual floor
- Produce mucous secretion
- Named based on location
- Examples:
- Labial gland in ruminants
- Buccal gland in ruminants
- Zygomatic gland in dogs
- Have short ducts
- Locally important
Major Salivary Glands
- Located some distance from the oral cavity
- Empty their secretion via long duct
- Produce most of the saliva
- Secretion:
- More watery (serous)
- Some have serous-mucous (mixed) secretion
Parotid Salivary Gland
- Lobular gland with several lobules separated by trabeculae
- Located ventral to the auricular cartilage (ear)
- Secretion: mixed (serous-mucous)
- Major collecting ducts eventually join forming a single duct
- Opens into the buccal vestibule
- In carnivores and small ruminants: duct passes over the lateral surface of the masseter muscle
- In horse, ox, and pig: duct passes medial to the angle of the jaw, emerges at the rostral border of the masseter muscle
Mandibular Salivary Gland
- Located close to the angle of the jaw
- Covered by parotid gland
- Single large duct passes ventral to the mucosa of the floor of the oral cavity
- Opens with the major sublingual duct near the sublingual caruncle / frenulum
- Secretion: mixed (serous-mucous), but also alternate between the two
Sublingual Salivary Gland
- Consists of two glands on either side of the tongue
- The major sublingual gland (monostomatic):
- Absent in horse
- Situated more caudally but rostral to mandibular salivary gland
- Drained by single duct
- Shares a common opening with mandibular salivary gland on the top of the sublingual caruncle
- The diffuse minor sublingual gland (polyostomatic):
- Located more rostrally
- Opens through several smaller ducts in the lateral sublingual recesses
- Both sublingual glands produce a serous-mucoid secretion in which the mucous part dominates
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Description
Test your knowledge of salivary glands anatomy including shape, secretion, and ducts location. Learn about the structure and function of major salivary glands such as the sublingual gland and mandibular gland duct.
