Salivary Glands I

When does the formation of salivary begin in the embryo?

4 to 6 weeks of embryonic life

What are the three major salivary glands?

Parotid, sublingual and submandibular

What is the largest salivary gland?

Parotid

What is secreted from the parotid gland?

100% serous (water)

What percentage of total saliva volume does the parotid gland contribute to?

25%

What is the parotid gland located below?

External auditory meatus

What is the meaning of parotid?

Beside the ear

Which two structures is the parotid gland located between?

Mastoid process and posterior border of ramus

What is the length of the parotid duct?

5cm

Where does the parotid duct run from and to?

Parotid gland to zygomatic arch

How does the parotid duct pierce to enter the oral cavity?

Buccinator muscle via stensens papillae

What autonomic nerve supplies the parotid gland?

Glossopharyngeal (branch of facial)

What sensory nerve supplies the parotid gland?

Auriculotemporal (branch of facial)

What is secreted from the submandibular gland?

Mixed

What is the submandibular gland half the size of?

Parotid gland

What percentage of total saliva volume does the submandibular gland contribute to?

60 to 65%

Where is the submandibular gland located?

Between body of mandible and Mylohyoid muscle in submandibular fossa

What duct is associated with the submandibular gland?

Whartons duct

How long is whartons duct?

5cm - same as the parotid gland

Where does Whartons duct open under?

Anterior of the tongue, lateral to lingual frenum at sublingual carnucle

What nerve provides sensation to the submandibular and sublingual gland?

Chorda tympani

What is the chorda tympani a branch of?

Lingual branch of inferior dental nerve

What is secreted from the sublingual gland?

60% mucous saliva

What is the smallest of the major salivary glands?

Sublingual

What percentage of total saliva volume does the sublingual gland contribute to?

5-10%

Where is the sublingual gland located?

Floor of the mouth in the sublingual fossa

What duct is associated with the sublingual gland?

Bartholins duct

What is the name of the smaller ducts of the sublingual gland?

Ducts of rivinus

What is the function of Bartholins and rivinus ducts?

Excretory ducts that drain saliva from sublingual glands into the floor of mouth

What do minor salivary glands secrete?

Mixed (mainly mucous)

What do minor salivary glands produce lots of?

Salivary proteins

What percentage of total saliva volume does minor salivary glands contribute to?

Less than 10%